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See also: Crystal


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Alternative forms[edit]


From Middle English crystal, cristal, criȝstall, from Old English cristalla (crystal), a borrowing from Latin crystallum (crystal, ice) (later reinforced from Anglo-Norman cristall and Middle French cristal, from Latin crystallum), from Ancient Greek κρύσταλλος (krústallos, clear ice), from κρύος (krúos, frost), from Proto-Indo-European *krews- (hard, hard outer surface, crust).


  • enPR: krĭsʹtəl, IPA(key): /ˈkɹɪstəl/
  • (file)
  • Rhymes: -ɪstəl


crystal (countable and uncountable, plural crystals)

  1. (countable) A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions.
    Synonym: grain
    Antonyms: amorphous, glass
  2. (countable) A piece of glimmering, shining mineral resembling ice or glass.
  3. (uncountable) A fine type of glassware, or the material used to make it.
  4. (uncountable, slang) Crystal meth: methamphetamine hydrochloride.
    • 1968, Joan Didion, “Slouching Towards Bethlehem”, in Slouching Towards Bethlehem:
      He tells me he's been shooting crystal, which I already pretty much know because he does not bother to keep his sleeves rolled down over the needle tracks.
  5. (obsolete, usually in the plural) a person's eye.
  6. The glass over the dial of a watch case.

Derived terms[edit]


  • Hindi: क्रिस्टल (krisṭal)
  • Japanese: クリスタル (kurisutaru)


The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.


crystal (not comparable)

  1. Made of crystal.
    • 1887, Joseph W[arren] Smith, Gleanings from the Sea: Showing the Pleasures, Pains and Penalties of Life Afloat, with Contingencies Ashore, Andover, Mass.: [] the Author, page 116:
      Its ceiling was crystal, around on the wall / Thickly studded were rubies and diamonds rare; / But purer than crystal, and brighter than all / Of the jewels adorning her glittering hall, / Was the mermaiden languishing there.
    • 1985, Patricia C[ollins] Wrede, Talking to Dragons, New York, N.Y.: Tempo Books, →ISBN, page 146:
      The walls were crystal, and they seemed to have hundreds of different-colored lights shifting behind them.
    • 2000, Dennis L[ester] McKiernan, Silver Wolf, Black Falcon, Roc Books, →ISBN, page 439:
      The uneven floor was crystal as well, as if there once had been huge crystals jutting up here, too, but ones that had been broken away and the surface crudely adzed.
  2. Very clear.
    "Do I make myself clear?" / "Crystal."