| / English Dictionary |
ROCK CRYSTAL
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A clear quartz used in making electronic and optical equipment
Synonyms:
rock crystal; transparent quartz
Classified under:
Hypernyms ("rock crystal" is a kind of...):
quartz (a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities)
Hyponyms (each of the following is a kind of "rock crystal"):
rhinestone (an imitation diamond made from rock crystal or glass or paste)
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