(crystallography) The characteristic external shape of an individual crystal or crystal group.

(crystallography) Any of 32 possible classes of crystals, arising from the 32 possible combinations of symmetry operations.

plural of twin crystal

plural of fractional crystallization

(biology) A periodic biological system.

(physics) A crystal that has a structure that repeats not only in space, but also in time.

plural of time crystal

A whitish, slightly crunchy or gritty crystalline spot that can form on cheese and most often consists of calcium lactate.

plural of cheese crystal

A city in Jefferson County, Missouri, United States. / A city, the county seat of Zavala County, Texas, United States. / An urban neighbourhood of Arlington County, Virginia, United States.