Other spellings

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Word parts

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crystal + -ise

Pronunciation

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Plain form
crystallise

Third-person singular
crystallises

Past tense
crystallised

Past participle
crystallised

Present participle
crystallising

  1. (transitive) (chemistry) (physics) If you crystallise something, you make it into the form of crystals.
    I crystallised the copper sulphate by slowly cooling a saturated solution.
  2. (intransitive) If something crystallises, it changes into a crystalline form.
    The copper sulphate crystallised from solution.
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