Meaning & use

crystal

noun·Academic

A solid substance with a regular, repeating structure and flat, often transparent faces.

See it in a sentence

A single crystal of quartz glittered on the shelf beside her other rock samples.

Snowflakes form as tiny ice crystals that freeze into six-sided patterns.

A note on using this word

Crystal can also describe high-quality clear glass, as in 'a crystal vase,' distinct from the mineral sense.

Words with a similar meaning

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