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operation - a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery" |
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surgery |
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medical procedure a procedure employed by medical or dental practitioners
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surgery a room where a doctor or dentist can be consulted; "he read the warning in the doctor's surgery"
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catheterisation,
catheterization the operation of introducing a catheter into the body
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cutting out,
ablation,
extirpation,
excision surgical removal of a body part or tissue
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amputation a surgical removal of all or part of a limb
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angioplasty an operation to repair a damaged blood vessel or unblock a coronary artery
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arthroplasty surgical reconstruction or replacement of a malformed or degenerated joint
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arthroscopy a minimally invasive operation to repair a damaged joint; the surgeon examines the joint with an arthroscope while making repairs through a small incision
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brain surgery any surgical procedure involving the brain
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castration surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men); "bilateral castration results in sterilization"
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cauterisation,
cauterization,
cautery the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing
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chemosurgery use of chemical to destroy diseased or malignant tissue; used in treatment of skin cancer
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craniotomy a surgical opening through the skull
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cryosurgery the use of extreme cold (usually liquid nitrogen) to destroy unwanted tissue (warts or cataracts or skin cancers)
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curettage,
curettement surgery to remove tissue or growths from a bodily cavity (as the uterus) by scraping with a curette
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debridement surgical removal of foreign material and dead tissue from a wound in order to prevent infection and promote healing
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decortication removal of the outer covering of an organ or part
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d and c,
dilatation and curettage,
dilation and curettage a surgical procedure usually performed under local anesthesia in which the cervix is dilated and the endometrial lining of the uterus is scraped with a curet; performed to obtain tissue samples or to stop prolonged bleeding or to remove small tumors or to remove fragments of placenta after childbirth or as a method of abortion
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electrosurgery surgery performed with electrical devices (as in electrocautery)
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enterostomy,
enterotomy surgical operation that creates a permanent opening through the abdominal wall into the intestine
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enucleation surgical removal of something without cutting into it; "the enucleation of the tumor"
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wrong-site surgery a surgical operation performed on the wrong part of the body
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evisceration altering something (as a legislative act or a statement) in such a manner as to reduce its value; "the adoption of their amendments would have amounted to an evisceration of the act"
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exenteration surgical removal of the organs within a body cavity (as those of the pelvis)
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eye operation,
eye surgery any surgical procedure involving the eyes
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fenestration surgical procedure that creates a new fenestra to the cochlea in order to restore hearing lost because of osteosclerosis
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gastrectomy surgical removal of all or part of the stomach
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gastroenterostomy surgical creation of an opening between the stomach wall and the small intestines; performed when the normal opening has been eliminated
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gastrostomy surgical creation of an opening through the abdominal wall into the stomach (as for gastrogavage)
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heart surgery any surgical procedure involving the heart
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haemorrhoidectomy,
hemorrhoidectomy surgical procedure for tying hemorrhoids and excising them
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haemostasia,
haemostasis,
hemostasia,
hemostasis surgical procedure of stopping the flow of blood (as with a hemostat)
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hysterotomy surgical incision into the uterus (as in cesarean section)
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implantation a surgical procedure that places something in the human body; "the implantation of radioactive pellets in the prostate gland"
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surgical incision,
incision,
section the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
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intestinal bypass surgical operation that shortens the small intestine; used in treating obesity
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jejunostomy surgical creation of an opening between the jejunum and the anterior abdominal wall; will allow artificial feeding
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major surgery any surgical procedure that involves anesthesia or respiratory assistance
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microsurgery surgery using operating microscopes and miniaturized precision instruments to perform intricate procedures on very small structures
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minor surgery any surgical procedure that does not involve anesthesia or respiratory assistance
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myotomy surgical incision or division of a muscle
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myringectomy surgical removal of the eardrum
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myringoplasty surgical repair of a perforated eardrum with a tissue graft
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myringotomy surgical incision into the eardrum (to relieve pressure or release pus from the middle ear)
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neurosurgery any surgery that involves the nervous system (brain or spinal cord or peripheral nerves)
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orchiopexy operation to bring an undescended testicle into the scrotum
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osteotomy surgical sectioning of bone
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ostomy surgical procedure that creates an artificial opening for the elimination of bodily wastes
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palatopharyngoplasty,
ppp,
uppp,
uvulopalatopharyngoplasty surgical resection of unnecessary palatal and oropharyngeal tissue to open the airway; intended to cure extreme cases of snoring (with or without sleep apnea)
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phlebectomy surgical removal or all or part of a vein; sometimes done in cases of severe varicose veins
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photocoagulation surgical procedure that uses an intense laser beam to destroy diseased retinal tissue or to make a scar that will hold the retina in cases of detached retina
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anaplasty,
plastic surgery,
reconstructive surgery surgery concerned with therapeutic or cosmetic reformation of tissue
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polypectomy surgical removal of a polyp
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resection surgical removal of part of a structure or organ
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rhinotomy surgical procedure in which an incision is made in the nose to drain accumulated pus
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rhizotomy surgical procedure in which spinal nerve roots are cut; done (anterior roots) to relieve intractable pain or (posterior roots) to stop severe muscle spasms
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sex-change operation,
transsexual surgery surgical procedures and hormonal treatments designed to alter a person's sexual characteristics so that the resemble those of the opposite sex
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purse-string operation,
shirodkar's operation a surgical procedure in which a suture is used to close the cervix in a pregnant woman; is performed when the cervix has failed to retain previous pregnancies
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sterilisation,
sterilization the procedure of making some object free of live bacteria or other microorganisms (usually by heat or chemical means)
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strabotomy the surgical operation of cutting a muscle or tendon of the eye in order to correct strabismus
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taxis the surgical procedure of manually restoring a displaced body part
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tracheostomy,
tracheotomy a surgical operation that creates an opening into the trachea with a tube inserted to provide a passage for air; performed when the pharynx is obstructed by edema or cancer or other causes
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organ transplant,
transplantation,
transplant the act of removing something from one location and introducing it in another location; "the transplant did not flower until the second year"; "too frequent transplanting is not good for families"; "she returned to Alabama because she could not bear transplantation"
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trephination an operation that removes a circular section of bone from the skull
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tympanoplasty surgical correction or repair of defects or injuries in the eardrum or the bones of the middle ear
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uranoplasty surgical correction of a defect of the palate
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suturing surgical joining of two surfaces
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vasovasostomy a surgical procedure that attempts to restore the function of the vas deferens after a vasectomy
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vivisection the act of operating on living animals (especially in scientific research)
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| 2. |
operation - (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction); "it can perform millions of operations per second" |
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data processing (computer science) a series of operations on data by a computer in order to retrieve or transform or classify information
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computer science,
computing the branch of engineering science that studies (with the aid of computers) computable processes and structures
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memory access,
access the act of approaching or entering; "he gained access to the building"
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asynchronous operation operations that occur without a regular or predictable time relation to other events
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auxiliary operation,
off-line operation a operation performed by off-line equipment not under the control of the central processing unit
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binary arithmetic operation,
binary operation,
boolean operation an operation that follows the rules of Boolean algebra; each operand and the result take one of two values
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computer operation,
machine operation an elementary operation that a computer is designed and built to perform
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concurrent operation two or more operations performed at the same time (or within a give interval)
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control function,
control operation an operation that controls the recording or processing or transmission of interpretation of data; "a control operation started the data processing"
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dyadic operation an operation on exactly two operands
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fixed-cycle operation an operation that is completed in a specified number of regularly timed execution cycles
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logic operation,
logical operation an operation that follows the rules of symbolic logic
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monadic operation,
unary operation an operation with exactly one operand
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multiplex operation an operation in which two or more activities are interleaved
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parallel operation,
simultaneous operation the simultaneous execution of two or more operations
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printing operation an operation that controls the printing or display of information
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lookup,
search an investigation seeking answers; "a thorough search of the ledgers revealed nothing"; "the outcome justified the search"
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consecutive operation,
sequential operation,
serial operation the sequential execution of operations one after another
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sorting,
sort grouping by class or kind or size
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synchronous operation operations that are initiated predictably by a clock
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threshold operation an operation performed on operands in order to obtain the value of a threshold function
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| 3. |
operation - activity by a military or naval force (as a maneuver or campaign); "it was a joint operation of the navy and air force" |
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activity any specific behavior; "they avoided all recreational activity"
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armed forces,
armed services,
military,
military machine,
war machine the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"
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combined operation a military operation carried out cooperatively by two or more allied nations or a military operation carried out by coordination of sea, land, and air forces
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simulated military operation,
maneuver,
manoeuvre an action aimed at evading an opponent
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military campaign,
campaign an overland journey by hunters (especially in Africa)
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naval campaign an operation conducted primarily by naval forces in order to gain or extend or maintain control of the sea
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military mission,
mission the organized work of a religious missionary
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reenforcement,
reinforcement,
support information that makes more forcible or convincing; "his gestures provided eloquent reinforcement for his complaints"
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onrush,
onset,
onslaught,
attack a forceful forward rush or flow; "from the bow she stared at the mesmerising onrush of the sea where it split and foamed"; "the explosion interrupted the wild onrush of her thoughts"
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offensive,
offence,
offense the action of attacking an enemy
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peacekeeping,
peacekeeping mission,
peacekeeping operation the activity of keeping the peace by military forces (especially when international military forces enforce a truce between hostile groups or nations)
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amphibious operation a military operation by both land and sea forces
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information gathering the act of collecting information
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psychological operation,
psyop military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments
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covert operation an intelligence operation so planned as to permit plausible denial by the sponsor
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| 4. |
operation - the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride" |
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activity any specific behavior; "they avoided all recreational activity"
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business enterprise,
commercial enterprise,
business the activity of providing goods and services involving financial and commercial and industrial aspects; "computers are now widely used in business"
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operation - the state of being in effect or being operative; "that rule is no longer in operation" |
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activeness,
activity,
action the trait of being active; moving or acting rapidly and energetically; "the level of activity declines with age"
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commission the act of granting authority to undertake certain functions
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running the act of administering or being in charge of something; "he has responsibility for the running of two companies at the same time"
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idle the state of an engine or other mechanism that is idling; "the car engine was running at idle"
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operation - a planned activity involving many people performing various actions; "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations" |
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activity any specific behavior; "they avoided all recreational activity"
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rescue operation an operation organized to free from danger or confinement
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undercover operation an operation involving secret work within a community or institution
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operation - a process or series of acts especially of a practical or mechanical nature involved in a particular form of work; "the operations in building a house"; "certain machine tool operations" |
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procedure |
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work activity directed toward making or doing something; "she checked several points needing further work"
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operation - process or manner of functioning or operating; "the power of its engine determines its operation"; "the plane's operation in high winds"; "they compared the cooking performance of each oven"; "the jet's performance conformed to high standards" |
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functioning,
performance |
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physical process,
process a sustained phenomenon or one marked by gradual changes through a series of states; "events now in process"; "the process of calcification begins later for boys than for girls"
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operation - a business especially one run on a large scale; "a large-scale farming operation"; "a multinational operation"; "they paid taxes on every stage of the operation"; "they had to consolidate their operations" |
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business activity,
commercial activity activity undertaken as part of a commercial enterprise
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