SALTPETER; SALTPETRE n.
trate, or true salpeter), a white crystalline substance, NaNO3, having a cooling, saline, slightly bitter taste. It is obtained by leaching the soil of the rainless districts of Chili and Peru. It is deliquescent and cannot be used in gunpowder, but is employed in the production of nitric acid. Called also cubic niter.…
SCRATCH v. 2 definitions
tear or mark the surface of with something sharp or ragged; to scrape, roughen, or wound slightly by drawing something pointed or rough across, as the claws, the nails, a pin, or the like. Small sand-colored stones, so hard as to scratch glass.Grew. Be mindful, when invention fails., To scratch your head, and bite you…
SENSITIVE a.
(Bot.), an American fern (Onoclea sensibilis), the leaves of which, when plucked, show a slight tendency to fold together. -- Sensitive flame (Physics), a gas flame so arranged that under a suitable adjustment of pressure it is exceedingly sensitive to sounds, being caused to roar, flare, or become suddenly shortened…