Crystal

kris′tal, n. a superior kind of quartz, clear like ice: ( chem. ) a piece of matter which has a umed a definite geometrical form, with plane faces.— adjs. Crys′tal , Crys′tallīne , consisting of or like crystal in clearne , .; Crys′talform ; Crys′tallīsable , capable of being crystallised or formed into crystals.— n. Crystallīsā′tion , the act of crystallising.— v.t. Crys′tallīse , to reduce to the form of a crystal.— v.i. to a ume a crystalline form.— ns. Crys′tallite ; Crystallogen′esis .— adj. Crystallogen′ic .— n. Crystal log′rapher , one skilled in crystallography.— adj. Crystallograph′ic — n. Crystal log′raphy , the science of crystallisation.— adj. Crys′talloid , having the form of a crystal.— n. a name given by Graham to a cla of substances which when in solution pa easily through membranes.— n. Crys′tallomancy , a mode of divination by means of transparent bodies. [O. Fr. cristol —L. crystal lum —Gr. krystallos , ice— kryos , frost.]