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:

Nouns denoting substances

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)

Credits