Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “crystal”


noun [C] (REGULAR SHAPE)   /ˈkrɪs·təl/
science the solid state of many simple substances, which have a regular shape and surfaces arranged in similar patterns
(Definition of crystal noun (REGULAR SHAPE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of crystal

Definitions of “crystal” in other dictionaries

Word of the Day


showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More