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| 1. |
rock - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries" |
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stone |
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material,
stuff things needed for doing or making something; "writing materials"; "useful teaching materials"
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quartzite hard metamorphic rock consisting essentially of interlocking quartz crystals
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road metal broken rock used for repairing or making roads
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sedimentary rock rock formed from consolidated clay sediments
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sial the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum
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sima rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium
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metamorphic rock rock altered by pressure and heat
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crushed rock,
gravel rock fragments and pebbles
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caliche nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru
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shingling the laying on of shingles; "shingling is a craft very different from carpentry"
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pumice,
pumice stone a light glass formed on the surface of some lavas; used as an abrasive
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aphanite fine-grained homogeneous rock (such as basalt) containing minerals undetectable by the naked eye
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claystone fine-grained rock consisting of compacted clay particles
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dolomite a light colored mineral consisting of calcium magnesium carbonate; a source of magnesium; used as a ceramic and as fertilizer
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emery rock,
emery stone a mixture of emery dust and a binder; can be molded into grindstones
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conglomerate,
pudding stone a group of diverse companies under common ownership and run as a single organization
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fieldstone stone that occurs naturally in fields; often used as building material
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greisen a granitic rock composed of quartz and mica
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calc-tufa,
tufa a soft porous rock consisting of calcium carbonate deposited from springs rich in lime
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magma molten rock in the earth's crust
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igneous rock rock formed by the solidification of molten magma
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limestone a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
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marble a small ball of glass that is used in various games
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matrix mold used in the production of phonograph records, type, or other relief surface
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| 2. |
rock - a lump or mass of hard consolidated mineral matter; "he threw a rock at me" |
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stone |
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natural object an object occurring naturally; not made by man
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achondrite a stony meteor lacking chondrules
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bedrock solid unweathered rock lying beneath surface deposits of soil
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boulder,
bowlder a town in north central Colorado; Rocky Mountains resort center and university town
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calculus,
concretion the branch of mathematics that is concerned with limits and with the differentiation and integration of functions
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chondrite a rock of meteoric origin containing chondrules
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clastic rock (geology) a rock composed of broken pieces of older rocks
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crystal,
crystallization a protective cover that protects the face of a watch
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intrusion entrance by force or without permission or welcome
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outcrop,
outcropping,
rock outcrop the part of a rock formation that appears above the surface of the surrounding land
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pebble a small smooth rounded rock
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petrifaction a rock created by petrifaction; an organic object infiltrated with mineral matter and preserved in its original form
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sill structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
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stepping stone any means of advancement; "the job was just a stepping stone on his way to fame and riches"
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tor a high rocky hill
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wall rock a rock immediately adjacent to a vein or fault
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whin,
whinstone any of various hard colored rocks (especially rocks consisting of chert or basalt)
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xenolith (geology) a piece of rock of different origin from the igneous rock in which it is embedded
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| 3. |
rock - pitching dangerously to one side |
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careen,
sway,
tilt |
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lurch,
pitch,
pitching an unsteady uneven gait
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| 4. |
rock - (figurative) someone who is strong and stable and dependable; "he was her rock during the crisis"; "Thou art Peter, and upon this rock I will build my church"--Gospel According to Matthew |
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good person a person who is good to other people
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| 5. |
Rock - United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984) |
| verb |
| 1. |
rock - move back and forth or sideways; "the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet" |
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sway,
shake |
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move back and forth move in one direction and then into the opposite direction
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roll execute a roll, in tumbling; "The gymnasts rolled and jumped"
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rock,
sway move back and forth or sideways; "the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet"
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nutate rock, sway, or nod; usually involuntarily
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swag sway heavily or unsteadily
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totter move without being stable, as if threatening to fall; "The drunk man tottered over to our table"
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| 2. |
rock - cause to move back and forth; "rock the cradle"; "rock the baby"; "the wind swayed the trees gently" |
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sway |
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rock,
shake,
sway move back and forth or sideways; "the ship was rocking"; "the tall building swayed"; "She rocked back and forth on her feet"
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displace,
move cause to move, usually with force or pressure; "the refugees were displaced by the war"
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