crystal in Greek

(countable) A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions.

(countable) A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions.

(countable) A piece of glimmering, shining mineral resembling ice or glass.

(countable) A piece of glimmering, shining mineral resembling ice or glass.