Définitions
1.NounA solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions.
2.NounA piece of glimmering, shining mineral resembling ice or glass.
3.NounA fine type of glassware, or the material used to make it.
4.NounCrystal meth; methamphetamine hydrochloride.
5.NounA person's eye.
6.NounThe glass over the dial of a watch case.
7.AdjectiveMade of crystal.
8.AdjectiveVery clear; coherent.""Do I make myself clear?" / "Crystal.""