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

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

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.

A community in West Nipissing, Ontario, Canada. / A ghost town in Quebec, Canada. / A city, the county seat of Iron County, Michigan, United States.

Alternative form of crystal meth

plural of crystal sphere

A crystal ball

(Wicca) The ceremonial use of crystals for specific intentions and healing energies

A census-designated place in Washoe County, Nevada, United States.

Someone who claims to be able to see the future by gazing into a crystal ball. / (figuratively) Someone who makes predictions about the future, especially when these are seen as speculative.