Chapter Quinidine to Quirk of Q by Webster's Dictionary (1913 Edition)

Quinidine to Quirk

Quinidine
(Quin"i*dine) n. (Chem.) An alkaloid isomeric with, and resembling, quinine, found in certain species of cinchona, from which it is extracted as a bitter white crystalline substance; conchinine. It is used somewhat as a febrifuge. [Written also chinidine.]

Quinine
(Qui"nine) n. [F. (cf. Sp. quinina), fr. Sp. quina, or quinaquina, Peruvian bark, fr. Peruv. kina, quina, bark. Cf. Kinic.] (Chem.) An alkaloid extracted from the bark of several species of cinchona (esp. Cinchona Calisaya) as a bitter white crystalline substance, C₂₀H₂₄N₂O₂. Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc. [Written also chinine.]

Quininic
(Qui*nin"ic) a. (Chem.) Pertaining to, or designating, a nitrogenous acid obtained as a yellow crystalline substance by the oxidation of quinine.

Quininism
(Qui"nin*ism Qui"nism) n. (Med.) See Cinchonism.

Quinizarin
(Qui*niz"a*rin) [Hydroquinone + alizarin.] (Chem.) A yellow crystalline substance produced artificially. It is isomeric with alizarin.

Quinizine
(Quin"i*zine) n. [Quinoline + hydrazine.] (Chem.) any one of a series of nitrogenous bases, certain of which are used as antipyretics.

Quinnat
(Quin"nat) n. [From the native name.] (Zoöl.) The California salmon (Oncorhynchus choicha); — called also chouicha, king salmon, chinnook salmon, and Sacramento salmon. It is of great commercial importance. [Written also quinnet.]

Quinoa
(||Qui*no"a) n. The seeds of a kind of goosewort used in Chili and Peru for making porridge or cakes; also, food thus made.

Quinogen
(Quin"o*gen) n. [Quinine + -gen.] (Chem.) A hypothetical radical of quinine and related alkaloids.

Quinoidine
(Qui*noid"ine) n. [Quinine + -oid.] (Med. (Chem.) 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. [Quinine + L. oleum oil + -ine.] (Chem.) 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. One who is versed in quinology.

Quinology
(Qui*nol"o*gy) n. [Quinine + -logy.] The science which treats of the cultivation of the cinchona, and of its use in medicine.

Quinone
(Qui"none) n. [Quinine + ketone.] (Chem.) 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.) Pertaining to, or designating, a crystalline acid obtained from some varieties of cinchona bark. [Written also chinovic, and kinovic.]

Quinovin
(Qui*no"vin) n. [NL. quina nova the tree Cosmibuena magnifolia, whose bark yields quinovin.] (Chem.) An amorphous bitter glucoside derived from cinchona and other barks. Called also quinova bitter, and quinova. [Written also chinovin, and kinovin.]