noun

crystal

crystal

She wore a crystal necklace.

She wore a crystal necklace.

Ice is a form of crystal.

Ice is a form of crystal.

The water was crystal clear.

The water was crystal clear.

((a crystal of)) ((sth.)) a piece of a homogeneous solid substance having a natural geometrically regular form A crystal of salt has a cubic shape.

((made of)) ((crystal)) made from a type of high-quality glass The chandelier is made of crystal.

Synonyms: gem, mineral

From Greek 'krystallos', meaning 'ice'. The ancient Greeks believed quartz was ice frozen so hard it would never melt.

Think of the phrase 'crystal clear'. It refers to something perfectly transparent and structured, like the mineral.

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