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Quinine
n.
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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.
Quininic
a.
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Pertaining to, or designating, a nitrogenous acid obtained as a yellow crystalline substance by the oxidation of quinine.
Quininism
n.
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Alt. of Quinism
Quinism
n.
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See Cinchonism.
Quinizarin
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A yellow crystalline substance produced artificially. It is isomeric with alizarin.
Quinizine
n.
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any one of a series of nitrogenous bases, certain of which are used as antipyretics.
Quinnat
n.
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The California salmon (Oncorhynchus choicha); -- called also chouicha, king salmon, chinnook salmon, and Sacramento salmon. It is of great commercial importance.
Quinoa
n.
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The seeds of a kind of goosewort (Chenopodium Quinoa), used in Chili and Peru for making porridge or cakes; also, food thus made.
Quinogen
n.
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A hypothetical radical of quinine and related alkaloids.
Quinoidine
n.
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A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids.
Quinoline
n.
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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.
Quinologist
n.
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One who is versed in quinology.
Quinology
n.
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The science which treats of the cultivation of the cinchona, and of its use in medicine.
Quinone
n.
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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.
Quinovic
a.
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Pertaining to, or designating, a crystalline acid obtained from some varieties of cinchona bark.
Quinovin
n.
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An amorphous bitter glucoside derived from cinchona and other barks. Called also quinova bitter, and quinova.
Quinoxaline
n.
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Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones.
Quinoxyl
n.
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The hypothetical radical of certain quinone derivatives related to rhodizonic acid.
Quinoyl
n.
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A radical of which quinone is the hydride, analogous to phenyl.
Quinquagesima
a.
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Fiftieth.
Quinquangular
a.
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Having five angles or corners.
Quinquarticular
a.
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Relating to the five articles or points; as, the quinquarticular controversy between Arminians and Calvinists.
Quinque-
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A combining form meaning five, five times, fivefold; as, quinquefid, five-cleft; quinquedentate, five-toothed.
Quinqueangled
a.
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Having five angles; quinquangular.
Quinquedentate
a.
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Alt. of Quinquedentated
Quinquedentated
a.
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Five-toothed; as, a quinquedentate leaf.
Quinquefarious
a.
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Arranged in five vertical rows; pentastichous.
Quinquefid
a.
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Sharply cut about halfway to the middle or base into five segments; as, a quinquefid leaf or corolla.
Quinquefoliate
a.
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Alt. of Quinquefoliated
Quinquefoliated
a.
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Having five leaves or leaflets.