| subst. |
| 1. |
crystal - a solid formed by the solidification of a chemical and having a highly regular atomic structure |
| |
|
solid a three-dimensional shape
|
| |
|
flake,
snowflake a crystal of snow
|
| |
|
diamond dust,
frost mist,
frost snow,
ice crystal,
ice needle,
poudrin,
snow mist small crystals of ice
|
| |
|
gem,
gemstone,
stone art highly prized for its beauty or perfection
|
| |
|
twins (mineralogy) two interwoven crystals that are mirror images on each other
|
| |
|
ice,
water ice a frozen dessert with fruit flavoring (especially one containing no milk)
|
| 2. |
crystal - a crystalline element used as a component in various electronic devices |
| |
|
component,
constituent,
element an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system; "spare components for cars"; "a component or constituent element of a system"
|
| |
|
crystal counter a counter tube in which an ionizing event increases conductivity
|
| |
|
crystal detector a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier
|
| |
|
crystal microphone a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage
|
| |
|
crystal pickup a cartridge in which an output voltage is produced by the vibration of a piezoelectric crystal
|
| |
|
piezoelectric crystal a crystal that can be used as a transducer
|
| 3. |
crystal - a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces |
| |
|
crystallization |
| |
|
rock,
stone pitching dangerously to one side
|
| |
|
crystallite any of numerous minute rudimentary crystalline bodies of unknown composition found in glassy igneous rock
|
| 4. |
crystal - a protective cover that protects the face of a watch |
| |
|
protection,
protective cover,
protective covering payment extorted by gangsters on threat of violence; "every store in the neighborhood had to pay him protection"
|
| |
|
ticker,
watch a character printer that automatically prints stock quotations on ticker tape
|
| 5. |
crystal - glassware made of quartz |
| |
|
glassware,
glasswork an article of tableware made of glass
|