CRYSTAL n.
or crystallized calcium carbonate, brought from Iceland, and used in certain optical instruments, as the polariscope. -- Rock crystal, or Mountain crystal, any transparent crystal of quartz, particularly of limpid or colorless quartz.
CUP n.
A cupping glass or other vessel or instrument used to produce the vacuum in cupping. Cup and ball, a familiar toy of children, having a cup on the top of a piece of wood to which, a ball is attached by a cord; the ball, being thrown up, is to be caught in the cup; bilboquet. Milman.- Cup and can, familiar companions.…
CUPPING n.
ced by heat, in the process of cupping. -- Dry cupping, the application of a cupping instrument without scarification, to draw blood to the surface, produce counter irritation, etc. -- Wet cupping, the operation of drawing blood by the application of a cupping instrument after scarification.