say it: KRI-stuhl
crystal is a noun meaning "a solid formed by the solidification of a chemical and having a highly regular atomic structure". It carries 6 recorded senses.
a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
colorless glass made of almost pure silica
glassware made of quartz
a protective cover that protects the face of a watch
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for crystal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.