QUINOLINE n.
A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type. [W…
RADISH n.
The pungent fleshy root of a well-known cruciferous plant (Paphanus sativus); also, the whole plant. Radish fly (Zoöl.), a small two-winged fly (Anthomyia raphani) whose larvæ burrow in radishes. It resembles the onion fly. -- Rat-tailed radish (Bot.), an herb (Raphanus caudatus) having a long, slender pod, which is s…
RECUR v.
ecourse; to go for help. If, to avoid succession in eternal existence, they recur to the "punctum stans" of the schools, they will thereby very little help us to a more positive idea of infinite duration. Locke. Recurring decimal (Math.), a circulating decimal. See under Decimal. -- Recurring series (Math.), an algebr…
REQUITAL n.
, compensation; recompense; as, the requital of services; in a bad sense, retaliation, or punishment; as, the requital of evil deeds. No merit their aversion can remove, Nor ill requital can efface their love. Waller.