CONTRACTILE a.
or smaller dimensions; as, the contractile tissues. The heart's contractile force. H. Brooke. Each cilium seems to be composed of contractile substance. Hixley. Contractile vacuole (Zoöl.), a pulsating cavity in the interior of a protozoan, supposed to be excretory in function. There may be one, two, or more.…
COQUINA n.
A soft, whitish, coral-like stone, formed of broken shells and corals, found in the southern United States, and used for roadbeds and for building material, as in the fort at St. Augustine, Florida.
CORIDINE n.
yellowish oil, C10H15N, of a leathery odor, occuring in coal tar, Dippel's oil, tobacco smoke, etc., regarded as an organic base, homologous with pyridine. Also, one of a series of metameric compounds of which coridine is a type. [Written also corindine.]