# crystallization

CEFR C1 · Noun

Source: https://englishreference.com/word/crystallization
Updated: 2026-10-16

## Definition

formation of solid crystals from a liquid as it cools or dries, like sugar hardening in a pan. You also use it for an idea slowly becoming clear and fixed.

For teachers: formation of highly ordered solid crystals from a solution, melt, or vapour by cooling, evaporation, or precipitation. Extended figuratively to the process by which vague ideas or attitudes assume definite, fixed form.

## Examples

- Crystallization turns sweet syrup into rock candy.
- The teacher shows crystallization by cooling hot sugar water until clear crystals grow on a string.
- Prolonged storage allowed slow crystallization of honey in the jar, transforming the once fluid gold into a pale, grainy mass that still tasted sweet.

## Synonyms

solidification

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.