CHALODERMIA 



170 



CHEMISTRY 



first by excessive lacrimation and sensitiveness to 

 light, resulting in blurred vision and continued flow of 

 mucus. It is due to rubbing the eyes after the hands 

 have been used on brass, as in trolley-car conductors, 

 and workmen. Syn., Chalcitis ; Brassy eye. 



Chalodermia {kal-o-dur' -me-ah) \_xalaaiq, a slacken- 

 ing; tiepua, the skin]. Ladislaus v. Ketly's term for 

 dermatolysis. 



Chalybeate. (See Illus. Diet.) 2. Having the color 

 or taste of iron. 3. A substance or medicine contain- 

 ing iron. 



Chalybs. (See Illus. Diet.) C. praeparatus, iron 

 filings. 



Chamaelirium (kam-e-lir 1 '-e-nm) [ja/m/, on the earth ; 

 'Aeifjiov, a lily]. A genus of plants of the order Lili- 

 acece. C. carolinianum, Willd., devil' s-bit, of the 

 United States and Canada ; the rhizome is a uterine 

 tonic, anthelmintic, diuretic, and febrifuge. Dose, of 

 aqueous infusion (1 oz. to 1 pint), a wineglassful. 



Chamber. (See Illus. Diet.) C, Aqueous (of the 

 eye), the space between the cornea and lens. C, 

 Resonance, a resonant chamber attached to a tuning- 

 fork for acoustic investigation. 



Chameleon-phenomenon ( ham -e-Ie-on -fen - om f - e - 

 nofi). A peculiar reaction shown by Bacillus pyocya- 

 neus. When grown on agar, a light green color is im- 

 parted to the medium, which after 48 hours turns very 

 dark green. On potato a yellowish-brown growth is 

 formed which turns green when the superficial portion 

 is removed by scraping, but it soon resumes its brown 

 color. 



Chameliretin, Chamelirrhetin, Chamaelirrhetin 

 (kam-el-ir-el'-in). A friable, odorless, tasteless, 

 resin-like substance obtained from chamelirin by action 

 of dilute acids. 



Chamemesocephalic, Chamaemesocephalic (ham-e- 

 mez-o-sef-al'-ik) \_xauai, low; /xeao^, median; KE(pa?.T/, 

 the head]. Both chamecephalic and mesocephalic. 



Chamomile. (See Illus. Diet.) C, German, Mat- 

 ricaria chamomilla, L. C, Roman, Anthemis no- 

 bilis. 



Champacol (sliam'-pa-kol) \_Champuka, Bengalese 

 name]. A camphor, Cj-H 30 O, from champaca wood, 

 A/ichelia champaca, L. It occurs in white crystalline 

 needles, soluble in ether and melting at 86°-88° C. 

 Syn., Champaca camphor. 



Champagne. (See Illus. Diet.) C. Milk, milk 

 sweetened and charged with carbonic acid gas. 



Chancre. (See Illus. Diet.) C, Arsenical, ulcera- 

 tion resembling a syphilitic chancre, but due to arsenic. 

 C, Celsus', C, Galen's, the soft chancre or chan- 

 croid. C, Njsbeth's. See NisbetK s C. (Illus. Diet.). 

 C, Ricord's, the parchment-like initial lesion of 

 syphilis. Syn., C. parchemine. C, Rollet's, mixed 

 chancre, partaking of the characteristics of both simple 

 and true chancre. C, Sahara, the Aleppo boil. 



Chancrous [skang'-krus). Of the nature of a chancre. 



Channel \chan'-el) [M K., <hancl\ See Canal. C.s, 

 Intercellular. 1. Irregular canals of communication 

 between the intercellular spaces interposed between 

 prickle-cells, and thought to be connected with the 

 lymph-capillaries. 2. Tiny canals between gland-cells. 

 C.s, Intracellular. See Intracellular Passages, under 

 h'upffer 1 s Cells (Illus. Diet.). C, Jugular, in com- 

 parative anatomy the space for the jugular vein be- 

 tween the levator humeri and the slernoinaxillary 

 muscles. C, Lymph. See Sinus, Lymph (Illus. 

 Diet.). C, Lymph, Perineurial. See under Peru 

 neurial '(Illus. Diet. ). C, Lymphatic, C, Plasmatic. 

 See Canals, Recklinghausen?!, and C, Serous (Illus. 

 Diet). 



Chappa {chap' -ah). The name among the Popo people 



in the colony of Lagos, for a disease believed to be 

 neither tuberculous nor syphilitic, marked by severe 

 initial pains in muscles and joints, followed by swell- 

 ing and the formation of round multiple nodules the 

 size of a pigeon's egg; without abscessing, these are 

 exposed by ulceration of the skin. The disease finally 

 attacks the bones. 



Charas, Charasa [Hind.]. See Churrus (Illus. Diet.). 



Charcot's Sensory Crossway. See Crossicay. 



Chariot (char'-e-ot). The movable coil of an induction 

 apparatus. 



Charlatanism, Charlatanry (shar'-lat-an-izm, -re). 



1. The state of being a quack. 2. The practices of 

 a quack. 



Charley-horse {char'-lc-hors). Stiffness of the right 

 arm and leg in baseball players. 



Chauveau's Retention Theory. See under Immun- 

 ity. 



Chaya, C. -root [chi'-ah). I. See Aerva /ana/a, 

 Juss. 2. The root of Oldenlandia umbellata. Syn., 

 Chayavar, Ghi. 



Chayavar (chi'-a-var). See Chaya. 



Chebule (cke-bfil'). The dried fruit of Terminalia 

 chebula, Retz. 



Cheil-. For words beginning thus see Chil-. 



Cheiracanthium [hi-ra-han'-the-um) [,y«'/>, hand; 

 anavtioc, a spine]. A genus of spiders of the family 

 Drassidie. C. nutrix, Walckenaer, a European species 

 regarded by Robert and others as poisonous. 



Cheiramidin. See Chair amidin. 



Cheiranthin (hi-rau'-thin). A glucosid from the leaves 

 and seeds of Cheiranthus cheiri, L., with action simi- 

 lar to that of digitalis. 



Chekenetin (chek-en'-et-in). C u H 7 6 . Olive-colored 

 crystals found in chekan. 



Chekenin (chek'-en-in). C, 2 H n 3 . Yellowish, rhom- 

 bic tablets found in chekan. 



Chekenon (cheh'-en-on). C 40 H u O 8 . A crystalline 

 body found in chekan. 



Chelate (he'-ldt) ^XV^V, a claw]. I. Claw-shaped. 



2. Having claw-shaped appendages or processes. 

 Chelene {ke-len'). Ethyl chlorid. 



Chelerythrin (hcl-er'-ith-rin). See Sanguinarin 

 (Illus. Diet.). 



Chelidonin. (See Illus. Diet.) C, Phosphate, a 

 white crystalline powder, soluble in water; it is used 

 as an analgesic. C. Sulfate, (C 20 II 19 NO 5 ) 2 H. : S( \. 

 white crystalline substance soluble in water; it is a 

 narcotic like morphin, but less toxic. Dose, 0.05-0.2 



Chelidonism Ikel-id'-on-izm). Poisoning by Chelidon- 

 ium ma jus: marked by inflammation of the mouth and 

 gastrointestinal tract and hematuria. It is due to the 

 action of chelerythrin, 



Cheline {kel'-ln). See Chelerythrin, 



Chemicity (hc/rr/V-il-e). The state of having chemic 

 properties. 



Chemicoanalytic (hem-ii-o-an-il-it'-ih). Relating to 

 chemic analysis. 



Chemicocautery {kem-ik-o-kattZ-tur-e) . Cauterization 

 by means of chemic agents. 



Chemiotaxis (Irm-c-o-tafo'-is). See Che mot axis (Illus. 

 Diet.). 



Chemism. (See Illus. Diet.) 2. Iatrochemistry 01 

 chemiatry. See Spagirism (Illus. Diet.). 3. The 

 theory that assumes the development of the universe to 

 he due to chemic processes. 



Chemist {kem'-ist). One skilled in chemistry. 



Chemistry. (See Illus. Diet.) C, Actinic, C, 

 Actino-, that treating of decomposition of light. C, 

 Analytic, that concerned in the determination of the 

 constituents and decomposition-products of sub: tancesj 



