FLINT GLASS n.
A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. Called also crystal glass. Cf…
FLOUR n.
other grain; especially, the finer part of meal separated by bolting; hence, the fine and soft powder of any substance; as, flour of emery; flour of mustard. Flour bolt, in milling, a gauze-covered, revolving, cylindrical frame or reel, for sifting the flour from the refuse contained in the meal yielded by the stones.…
FLUFFY a.
Pertaining to, or resembling, fluff or nap; soft and downy. "The carpets were fluffy." Thackeray. The present Barnacle . . . had a youthful aspect, and the fluffiest little whisker, perhaps, that ever was seen. Dickens. -- Fluff"i*ness, n.