QUINCUNX 



estivation in which there are five leaves, two out- 

 . two inside, and one with one edge outside and 

 the other inside. Also five-ranked. 



Quincunx [kwin'-kungks )[ quinque, five; uncia, a 

 twelfth part]. In biology, an arrangement of five 

 parts, or objects, in a square with the odd one in 

 the center, /. e.,-.- 



^uinetum [kzui-ne'-tum) [Sp. quina, bark]. Cinchona 



the mixed alkaloids from red cinchona 



bark used as a cheap febrifuge in India. Dose gr. j-v. 



^uinic [kzvin'-ik) [Sp., quina, bark]. Pertaining to 



* quinin. Q. Fever, febrile symptoms, with an erup- 

 tion ; it occurs among workmen making quinin. 



^uinicin (kzain'-is-in) [Sp., quina, bark]. One of 

 the constituents of chinoidin. 



)uinidin (kwin'-id-in). See Quinidina. 



)uinidina (kzoin-id-i'-nah) [Sp., quina, bark], C^- 

 H 24 No< -).,- A cinchona alkaloid, considered by most 

 writers to be isomeric with quinin, with which it 

 corresponds in therapeutic effects, but it is thought 

 to produce less unpleasant symptoms in the head. 

 Q., Sulph., (C 20 H 24 N 2 O 2 ) 2 H 2 SO 4 .2H 2 O, readily sol- 

 uble in acidulated water and alcohol ; it is an excel- 

 lent antipyretic and antiperiodic. Dose gr. j-xx or 



i more. 



)umm,Qumia.,Q,uinma.(£zi'i' -nin,kzcin'-en,OT kin-en'; 

 kivin'-e-ah, kwin-i'nah) [Sp., quina, bark], C^H.^- 



j N,0 2 ,3H 2 0. Quinin is a finely crystalline or amorphous 

 white alkaloid obtained from various species of cinchona. 

 It is odorless; very bitter, alkaline in reaction, and 

 soluble in 1600 parts of cold water or 6 parts of alcohol. 

 It is a valuable tonic, antiseptic, antipyretic, and anti- 

 periodic. It is extremely valuable in malarial affec- 

 tions. Quinin and its salts are distinguished from all 

 other alkaloids, excepting quinidin and quinicin, by 

 the emerald-green color given to their solution by 

 chlorin-water followed by ammonia. Q.-bush. See 

 Garrya. Q. -flower, the root of Sabbatia elliottii, 

 abundant in southeast U. S. It is tonic, febrifuge, and 

 antiperiodic, and is of high repute in malarial fevers. 

 Dose of the fld. ext. 3 ss-j. Unof. Q., Amor- 

 phous, an alcoholic extract of powdered calisaya 

 bark mixed with calcium hydrate. Beta-Q. See 

 Quinidina. Q., Amorphous Boric, borate of quinin. 

 Unof. It is highly recommended, soluble, and is said to 

 cause little congestion of themembrana tympani. Q. , 

 Poor man's, the seeds of Ccesalpinia bonduc and C. 

 bonduella. Q. and urea bimuriate, a soluble salt, 

 especially useful for hypodermatic injection. Q. bibro- 

 mas. C 20 H 24 N 2 O 2 ,2HBr,3H 2 O. Dose gr. j-iij. Q. 

 bisulphas, C W H 24 N 2 2 ,H 2 S0 4 ,7H 2 0, very soluble in 

 water. Dose gr. j-xxx. Q. hydrobromas, C^Hy- 

 N 2 ().,HBr,2H 2 0, best salt for hypodermatic use. Dose 

 gr. j-xx. Q. hydrochloras, C^H^N^HCl.aHp, 

 muriate of quinin, antipyretic in gr. v-x doses. Q. 

 hydrochlor. carbamidat., a compound salt of quinin 

 i and urea. Dose gr. j-iij. Suitable for hypodermatic use. 

 Q. lactas, C w H M N 2 2 .C 3 H 6 O s , very soluble. Dose 

 gr. j-xx. Q. salicylas, valuable in neuralgiaand rheu- 

 matic gout. Dosegr.j-vj. Q. sulphas (C.^H.^ N 2 2 ) 2 . - 

 H 2 S(J 4 . 7H 2 0, soluble in hot and acidulated water. 

 Dose gr. j-xx or xl. Q. sulphocarbolas. Dose 

 S 1 - j _v - Q- tannas, tasteless, but insoluble in the 

 stomach. Dose gr. x-xx. Q., Tinctura, Ammo- 

 niata (B. P.). Dose ^ss-ij. Q. valerianas, C^- 

 I H, 4 N 2 O 2 C 3 H I0 O 2 .H 2 O, the only salt affected by con- 

 stituent acid. Dose gr. j-iij. Q., Vinum (B. P.). 

 Dose ^ ss-j. 



iinina (kiuin-i'-nah). See Quinia. 

 .lininic Acid {kwin-in'-ik). See Acid. 

 aininism (kzvin-en'-izm) [Sp., quina, bark]. Cin- 

 chonism ; the condition induced by the continued use 



1229 



QUINQUECAPSULAR 



or by large doses of quinin. It is marked by deaf- 

 ness, ringing in the ears, etc. 



Quinizarin | £zcin-i;-a'-rin)[Sp., quina, bark], C 14 H 8 4 . 

 An isomerid of alizarin. 



Quinoa (ke-no'-ah) [Peruv.]. A plant, Chenopodium 

 quinoa, of Peru and Chile, where it is cultivated for 

 its seeds, which are used as a substitute for the true 

 cereals. The seed-husks of red quinoa are said to 

 be antiperiodic and emetic. Unof. 



Quinodin [kwin' -o-din) [Sp. , quina, bark]. An alka- 

 loid-like body found in the organs, tissues, and fluids 

 of human and other animal bodies, resembling by its 

 bluish fluorescence the sulphate of quinin. Obtained 

 by Du Pre and Bence Jones, 1866. 



Quinoidin (kzvin-ui'-din). See Chinoidinnm. 



Quinol (kwi'-nol). See Hydroquinone. 



Quinolin [kzcin'-o-lin) [Sp., quina, bark], C 9 H-N. A 

 substance occurring in bone-oil and coal-tar. It results 

 when many alkaloids are distilled. It is a colorless, 

 strongly refracting liquid, with a penetrating odor. It 

 boils at 239 C. ; its specific gravity is 1. 095 at 20 C. 

 It is also called Chinolin, q. v. Q. -colors. See 

 Pigments, Conspectus of. 



Quinology (kwln-ol' '-o-j'e ) [Sp. , quina, bark ; 7,6yoq, 

 science]. The scientific study of the cinchona trees 

 and of their alkaloids. 



Quinone [kzcin'-on) [Sp., quina, bark]. A general 

 term for certain derivatives of the benzene series. 

 Also a specific substance of yellowish color and vola- 

 tile at ordinary temperatures, derived from members 

 of the aromatic group by oxidation with sulphuric acid 

 and manganese dioxid. 



Quinotannic Acid (k-zoin-o-tan'-ik) [Sp., quina, bark; 

 tannin, tannin]. A special form of tannic acid found 

 in certain classes of cinchona-bark. 



Quinova (kzcin-o'-vah) [a contraction of quina nova, 

 false cinchona bark] . The bark of Portlandia gran- 

 diflora. 



Quinovin (kzi'in'-o-vin) [Sp. , quina, bark], C^H^Og. 

 Kinovin ; an amorphous bitter glucosid derived from 

 cinchona bark. It is said to be an antipyretic. 



Quinoxalin (kziin-oks'-al-in) [Sp. , quina, bark; o^ic, 

 sharp], C 8 H 6 N 2 . A substance obtained from pheny- 

 lene diamin and glyoxal or its compounds by digest- 

 ing the aqueous solution at 6o° C. with sodium bisul- 

 phite. It is a crystalline mass, melting at 27 C. and 

 boiling at 229 C. Its odor resembles that of quino- 

 lin and piperidin. The Quinoxalins are prepared by 

 the condensation of the ortho-phenylene diamins with 

 glyoxal. The quinoxalins that do not contain oxy- 

 gen are feeble monacid bases, generally soluble in 

 water, alcohol, and ether. Their odor resembles that 

 of quinolin. 



Quinoxim ( kzz'in - oks'- im ) [Sp., quina, bark ; 6z> r, 

 sharp], C 6 H 4 (NO).OH. Nitrosophenol ; prepared by 

 the action of nitrous acid upon the phenols. It crys- 

 tallizes from hot water in colorless, delicate needles, 

 which readily brown on exposure. It is soluble in 

 water, alcohol, and ether, and imparts to them a bright- 

 green color. 



Quinquaud's Disease. See Folliculitis decalvans, and 

 Diseases, Table of. Q.'s Plaster, a plaster used in 

 treating syphilis. It consists of emplastrum diachylon, 

 3000 parts ; calomel, 1000 parts ; castor-oil, 300 parts. 

 The calomel is suspended in the oil and is then added 

 to the melted plaster ; it is then spread on linen so that 

 14 strips each 9 feet by 7^ inches are produced. Of 

 this plaster a square of 2^ inches contains 18 grains 

 of calomel. * 



Quinquecapsular (kzuin - kzve - kap/- su - lar) [quinque, 

 five ; capsula, capsule]. In biology, having five cap- 

 sules. 



