SPERMATOZOID n.
The male germ cell in animals and plants, the essential element in fertilization; a microscopic animalcule-like particle, usually provided with one or more cilia by which it is capable of active motion. In animals, the familiar type is that of a small, more or less ovoid head, with a delicate threadlike cilium, or tail…
SPIRANT n.
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.
SPONGE n.
altpeter, and again dried in an oven. This makes the black match, or tinder, brought from Germany. -- Sheep's-wool sponge, a fine and durable commercial sponge (Spongia equina, variety gossypina) found in Florida and the West Indies. The surface is covered with larger and smaller tufts, having the oscula between them.…