REENFORCE n.
which 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.
SINISTER a.
Indicative of lurking evil or harm; boding covert danger; as, a sinister countenance. Bar sinister. (Her.) See under Bar, n. -- Sinister aspect (Astrol.), an appearance of two planets happening according to the succession of the signs, as Saturn in Aries, and Mars in the same degree of Gemini. -- Sinister base, Sinis…
SITTING n.
A brooding over eggs for hatching, as by fowls. The male bird . . . amuses her [the female] with his songs during the whole time of her sitting. Addison. Sitting room, an apartment where the members of a family usually sit, as distinguished from a drawing-room, parlor, chamber, or kitchen.
SULPHURIC a.
s also powerful dehydrating agent, having a strong affinity for water, and eating and corroding paper, wood, clothing, etc. It is thus used in the manufacture of ether, of imitation parchment, and of nitroglycerin. It is also used in etching iron, in removing iron scale from forgings, in petroleum refining, etc., and i…