PUTTY n.
-- used in fastening glass in sashes, stopping crevices, and for similar purposes. Putty powder, an oxide of tin, or of tin and lead in various proportions, much used in polishing glass, metal, precious stones, etc.
REDUCE v.
or condition by grinding, pounding, kneading, rubbing, etc.; as, to reduce a substance to powder, or to a pasty mass; to reduce fruit, wood, or paper rags, to pulp. It were but right And equal to reduce me to my dust. Milton.
REENFORCE n.
is thicker than the rest of the piece, so as better to resist the force of the exploding powder. See Illust. of Cannon. (b) An additional thickness of canvas, cloth, or the like, around an eyelet, buttonhole, etc.
RINGWORM n.
a vegetable parasite, and forming ring-shaped discolored patches covered with vesicles or powdery scales. It occurs either on the body, the face, or the scalp. Different varieties are distinguished as Tinea circinata, Tinea tonsurans, etc., but all are caused by the same parasite (a species of Trichophyton).…
ROCHELLE n.
A seaport town in France. Rochelle powders. Same as Seidlitz powders. -- Rochelle salt (Chem.), the double tartrate of sodium and potassium, a white crystalline substance. It has a cooling, saline, slightly bitter taste and is employed as a mild purgative. It was discovered by Seignette, an apothecary of Rochelle, and…
ROCK n.
o large claws. Called also spiny lobster, and sea crayfish. -- Rock meal (Min.), a light powdery variety of calcite occuring as an efflorescence. -- Rock milk. (Min.) See Agaric mineral, under Agaric. -- Rock moss, a kind of lichen; the cudbear. See Cudbear. -- Rock oil. See Petroleum. -- Rock parrakeet (Zoöl.), a…
SALTPETER; SALTPETRE n.
ification (see Nitrification, 2). It is a strong oxidizer, is the chief constituent of gunpowder, and is also used as an antiseptic in curing meat, and in medicine as a diuretic, diaphoretic, and refrigerant. Chili salpeter (Chem.), sodium nitrate (distinguished from potassium nitrate, or true salpeter), a white crysta…
SAPONIN n.
Saponaria), in the bark of soap bark (Quillaia), etc. It is extracted as a white amorphus powder, which occasions a soapy lather in solution, and produces a local anæstesia. Formerly called also struthiin, quilaiin, senegin, polygalic acid, etc. By extension, any one of a group of related bodies of which saponin proper…
SAUCISSON; SAUCISSE n.
A long and slender pipe or bag, made of cloth well pitched, or of leather, filled with powder, and used to communicate fire to mines, caissons, bomb chests, etc.