CHLORAL 



76 



CHOKOID 



Chloral, (Moral). [Chlorine and a?cohol.]= 

 CoCl 3 HO: an oily fluid, which solidifies into 

 a white solid. C. Aydra^=C 2 HCl 3 O.H 2 O: a 

 narcotic which reduces animal temperature, 

 and also induces hypersesthesia. 



Chloraniline, (klo-ran'i-lm). [Chlorine and 

 aniline, g.?'.]=C(jHgClN2=Aniline in which 

 one atom of hydrogen is exchanged for chlo- 

 rine. 



Chloranthacese, (klo-rau-tha'se-e). [Chloran- 

 thus, q.v. ]=Chlorantha : tropical aromatic 

 herbs and shrubs with jointed stems, belong- 

 ing to Piperales. 



Chloranthus, ( k!5-ran'thus ). [Gk. chloros, 

 green; anthos, flower.] The typical genus of 

 Chloranthacete. 



Chlorates, (klo'rats). [Chloric acid, q.v.]= 

 M'C1O 3 : monobasic salts, formed by chloric 

 acid combined with bases. 



Chlorhydric, (klor-hi'drik)=Hydrochloric, q.v, 



Chlorhydrin, (klor-hi'drin). C 3 H 7 C1O 2 : an 

 ether obtained by acting on glycerin with 

 hydrochloric acid. 



Chloric acid, (klo'ric). [Chlorine, q.v.]=U.y- 

 dric chlorate=HC10 3 : a liquid, faintly odor- 

 ous, and powerfully acid, which is decom- 

 posed by light. 



Chlorides, (klo'rulz). [Chlorine, q.v.] Com- 

 pounds of chlorine with other substances. 

 Cl. of N.: a liquid which is very explosive 

 when heated, or in contact with combustible 

 substances = HC1 2 N.C1 3 N. Of. of Hg=l. 

 Calomel=Hg 2 Cl 2 . 2. Corrosive sublimate= 

 HgClo. CL of Na=Comn\on salt=NaCl= 

 Muriate of soda: an antiseptic crystalline 

 substance found in the earth, and also dis- 

 solved in sea- water. 



Chlorimetry, (klo-rim'e-tri). [Chlorine, q.v. ; 

 Gk. metron, measure.] The estimation of 

 the amount of chlorine present in a com- 

 pound. 



Chlorination, (klo-rin-ii'shun). A method of 

 extracting gold and silver from the ore by 

 conversion into chlorides, which are after- 

 wards decomposed. 



Chlorine, (klo'rin). [Gk. chloros, green. ]=C1': 

 one of the Halogens ; formerly called oxy- 

 muriatic acid. A heavy, transparent, green- 

 ish gas, with a strong irritating odour, re- 

 sembling oxygen in its character; much used 

 for its properties of bleaching and disinfecting. 



Chloripdoform, (klo-ri-od'o-form). [Chlorine 

 and iodoforni, ^.v.J^CoHCloI ' an aromatic 

 liquid, a compound of chlorine and iodoform. 



Chorisathyd, (klo'ris-a-thid). [Chlorine and 

 m<i/iycZ,<?.vO=C8H 5 ClN0 2 :=Isathyd, in which 

 one equivalent of hydrogen, is replaced by one 

 of chlorine. 



Chlorisatin = C 8 H 4 C1N0 2 . A crystallisable 

 substance, obtained by the action of chlorine 

 upon indigo. 



Chlorite, (k!5-rlt). [Chlorine, <7.r.]=Peach : a 

 mineral of the mica group, a silicate of 

 magnesia, alumina, and iron ; usually green. 



Chlorites, (klo'rltz). [Chlorine, <p.]=M'G10 2 : 

 compounds of chlorous acid with bases. 



Chloritic series, (klo-rit'ik). [Chlorine, q.v.] 

 =Upper Greensand : beds belonging to the 

 Upper Cretaceous series. 



Chloroform, ( klo'ro-form ). [Chlorine and 

 formyl, 2.v.]=Trichloride of formyl=CHC! 3 : 

 an odorous volatile Liquid, much used as an 

 anaesthetic. 



Chlorophane, (klo'ro-fan). [Gk. chloros, green; 

 and phaino, I shine.] A massive variety of 

 fluor-spar, which, when heated, is phosphor- 

 escent. 



Chlorophyll, (klo'ro-fil). [Gk. chloros, green ; 

 phyllon, leaf.] A colouring matter in leaves 

 of plants, yellow in the leaf, becomes green 

 when exposed to light. 



Chlorous acid, (klo'rus). [Chlorine, q.v.]= 

 HClO 2 =Hydric chlorite : an acid, the salts 

 of which are chlorites. 



Chloroxylon, (klor-ok'si-lon). [Gk. chloros, 

 green ; xylon, wood.] A plant belonging to 

 Cedrelaceee. 



Chocolate, (chok'o-lat). [A corruption of the 

 Mexican name.] The nuts of Theobroma 

 Cacao roasted and ground. 



Choetognatha, (ke-tog'nath-a)=Sagitta : small 

 transparent marine animals, belonging to 

 Annulosa. 



Choke-damp, Carbonic acid when accumu- 

 lated in mines, &c. 



Cholepyrrhin, (ko-le-pi'rin )=Biliphsein : an 

 amide of biliverdin ; the brown colouring 

 matter of the bile. 



Cholesteric acid, (ko-les'ter-ik). [Cholesterin, 

 .v.]=CgH]o05: a solid" resinous acid sub- 

 stance obtained from cholesterin. 



Cholesterin (ko-les'tfjr-in). [Gk. cholc, bile ; 

 stear, suet.]r=C 2 gH440 : a fatty crystalline 

 substance found in the bile and also in 

 blood. 



Chondrin, (kon'drin). " [Gk. chondros, cartil- 

 age.] A gelatinous liquid obtained from 

 cartilage. 



Chondrostei, (kon-dros'te-i). " [Gk. chondros, 

 cartilage.] Used by Siebold for a sub- 

 division of fishes. 



Chondropterygii, (kon-drop-ter-ij'i-i). '[Gk.' 

 chondros, cai'tilage ; pteri/x, fin. ]= Cartilagi- 

 nous fishes. 



Chord, (kord). [Cliorda, the Latin name.] 

 1. A straight line joining 

 two points of a circle. 2. 

 Used generally for any 

 stretched string, especially 

 of a musical instrument. [A 

 3. An harmonious combi- 

 nation of musical tones. 



Chorda, (kor'da). [The Latin 

 word.] Used for cord-liko 

 nerves or muscles. C. dor- Chord. 

 sats=Notochord, q.v. C. tendinccc : strong 

 fine tendons closing the valves in the heart. 

 C. tympani: a sub-division, of the seventh 

 or facial nerve. 



Chorion, ( kor'i-on ). [ Gk. chorion, skin. ] 

 The membrane in which a vertebrate foetus 

 is enclosed, which develops into the placenta. 



Chorisis, (ko'ris-is). [Gk. choriso, I separate.] 

 The separation of an organ into two or more, 

 as of a leaf into leaflets. 



Choroid, (ko'roid). [Chorion, q.v. ; Gk. cidos, 

 form.] Resembling the chorion in character. 

 C. coat : a vascular membrane, black on tha 



