SODIUM n.
te opaque brittle solid, NaOH, having a fibrous structure, produced by the action of quicklime, or of calcium hydrate (milk of lime), on sodium carbonate. It is a strong alkali, and is used in the manufacture of soap, in making wood pulp for paper, etc. Called also sodium hydrate, and caustic soda. By extension, a solu…
SORGHUM n. 2 definitions
A genus of grasses, properly limited to two species, Sorghum Halepense, the Arabian millet, or Johnson grass (see Johnson grass), and S. vulgare, the Indian millet (see Indian millet, under Indian).
SPECTRUM n. 3 definitions
ogrophic methods, have their maximum influence at and beyond the violet rays, but are not limited to this region. -- Chromatic spectrum, the visible colored rays of the solar spectrum, exhibiting the seven principal colors in their order, and covering the central and larger portion of the space of the whole spectrum.…
SPHERICAL; SPHERIC a. 3 definitions
by spherical predominance. Shak. Though the stars were suns, and overburned Their spheric limitations. Mrs. Browning. Spherical angle, Spherical coördinate, Spherical excess, etc. See under Angle, Coordinate, etc. -- Spherical geometry, that branch of geometry which treats of spherical magnitudes; the doctrine of the…
SPIRANT n.
the further exception, by others, of the liquids r, l, and the semivowels w, y; by others limited to f, v, th surd and sonant, and the sound of German ch, -- thus excluding the sibilants, as well as the nasals, liquids, and semivowels. See Guide to Pronunciation, §§ 197-208.