Defn: A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids. [Written also chinoidine.]
QUINOLINE
Quin"o*line, n. Etym: [Quinine + L. oleum oil + -ine.] (Chem.)
Defn: 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. [Written also chinoline.]
QUINOLOGIST
Qui*nol"o*gist n.
Defn: One who is versed in quinology.
QUINOLOGY
Qui*nol"o*gy, n. Etym: [Quinine + -logy.]
Defn: The science which treats of the cultivation of the cinchona, and of its use in medicine.
QUINONE
Qui"none, n. Etym: [Quinine + ketone.] (Chem.)
Defn: A crystalline substance, C6H4O2 (called also benzoketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type. [Written also chinone, kinone.]
QUINOVIC
Qui*no"vic, a. (Chem.)