| / English Dictionary |
CRYSTAL
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A protective cover that protects the face of a watch
Synonyms:
crystal; watch crystal; watch glass
Classified under:
Nouns denoting man-made objects
Hypernyms ("crystal" is a kind of...):
protection; protective cover; protective covering (a covering that is intend to protect from damage or injury)
Holonyms ("crystal" is a part of...):
ticker; watch (a small portable timepiece)
Sense 2
Meaning:
Glassware made of quartz
Classified under:
Nouns denoting man-made objects
Hypernyms ("crystal" is a kind of...):
glassware; glasswork (an article of tableware made of glass)
Sense 3
Meaning:
A crystalline element used as a component in various electronic devices
Classified under:
Nouns denoting man-made objects
Hypernyms ("crystal" is a kind of...):
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)
Hyponyms (each of the following is a kind of "crystal"):
piezoelectric crystal (a crystal that can be used as a transducer)
Holonyms ("crystal" is a part of...):
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; crystal mike (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)
Sense 4
Meaning:
A rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
Synonyms:
crystal; crystallization
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("crystal" is a kind of...):
rock; stone (a lump or mass of hard consolidated mineral matter)
Hyponyms (each of the following is a kind of "crystal"):
crystallite (any of numerous minute rudimentary crystalline bodies of unknown composition found in glassy igneous rock)
Derivation:
crystalize (assume crystalline form; become crystallized)
crystalize (cause to form crystals or assume crystalline form)
Sense 5
Meaning:
Colorless glass made of almost pure silica
Synonyms:
crystal; lechatelierite; quartz; quartz glass; vitreous silica
Classified under:
Hypernyms ("crystal" is a kind of...):
natural glass (magma of any composition that cooled very rapidly)
Meronyms (substance of "crystal"):
silica; silicon dioxide; silicon oxide (a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite)
Derivation:
crystalize (assume crystalline form; become crystallized)
crystalize (cause to form crystals or assume crystalline form)
crystallize (assume crystalline form; become crystallized)
crystallize (cause to form crystals or assume crystalline form)
Sense 6
Meaning:
A solid formed by the solidification of a chemical and having a highly regular atomic structure
Classified under:
Nouns denoting substances
Hypernyms ("crystal" is a kind of...):
solid (matter that is solid at room temperature and pressure)
Hyponyms (each of the following is a kind of "crystal"):
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 (a crystalline rock that can be cut and polished for jewelry)
twins ((mineralogy) two interwoven crystals that are mirror images on each other)
ice; water ice (water frozen in the solid state)
Derivation:
crystalize (assume crystalline form; become crystallized)
crystalize (cause to form crystals or assume crystalline form)
crystallize (assume crystalline form; become crystallized)
crystallize (cause to form crystals or assume crystalline form)
Context examples:
Plastic crystals lie at the boundary between solids and liquids.
(Green material for refrigeration identified, University of Cambridge)
The determination of the amount of acid urate crystals present in a sample.
(Acid Urate Crystal Measurement, NCI Thesaurus)
Awaking in the dead of night, I opened my eyes on her disk—silver-white and crystal clear.
(Jane Eyre, by Charlotte Brontë)
The determination of the amount of ammonium biurate crystals present in a sample.
(Ammonium Biurate Crystals Measurement, NCI Thesaurus)
The crystal structure of the Arp2/3 complex has revealed further insights into the nature of how the complex works.
(Actin Branching Pathway, NCI Thesaurus/BIOCARTA)
A finding indicating the formation of calcium oxalate crystal deposits in an organ.
(Calcium Oxalate Crystal Deposition, NCI Thesaurus)
The determination of the amount of calcium oxalate crystals present in a sample.
(Calcium Oxalate Crystal Measurement, NCI Thesaurus)
Cells which secrete an extracellular matrix into which hydroxyapaetite crystals are deposited to form bone.
(Osteoblast, NCI Thesaurus)
A measurement of the monosodium urate crystals present in a biological specimen.
(Monosodium Urate Crystal Measurement, NCI Thesaurus/CDISC)
The determination of the amount of monosodium urate crystals present in a sample.
(Monosodium Urate Crystal Measurement, NCI Thesaurus)
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