COLLODIUM 311 



Collodium {kol-& '-de-um) . See Pyroxylin. 

 Colloid {kol'-oid) \k67.7m., glue]. I. A non-crystalliza- 

 ble and generally insoluble organic substance. See 

 2. A mobile pathologic material, jelly-like, 

 firmer than mucus, and differing in its reactions from 

 albumin and from lardacein. 3. Having the nature 

 of glue. 4. In chemistry, amorphous and non-crystal- 

 line. C. Cancer. See Cancer. C. Degeneration 

 of the Skin, a rare disease, occurring chiefly on the 

 jper part of the face, in the form of small, glistening, 

 islucent, flattish elevations, and yielding by pres- 

 a small, jelly-like mass. C. Milium. See Mil- 



una {kol-o'-mah) \_n67.7.a, glue; bua, a tumor: //., 

 <Bomata~\. A cystic tumor containing a gelatiniform, 

 orphous, and non-vascular substance, 

 nema ikol-o-ne'-mah) \k6aj.o,, glue; vrjfia, tissue: 

 , Collonemata~\. Myxoma, or myxosarcoma. 



■I' -urn) [L.]. The neck; especially the 

 terior part of the neck. C. distortum. Synonym 

 Torticollis. 

 Collunarium [kol-nn-a' -re-um) [L.]. A nasal douche. 

 Collyrium 1 kol-ir' -e-um) \_no7JAptov, an eye-salve : //. , 

 <Uyrid\. An astringent, antiseptic, or medicinal 

 ion for the eyes. More rarely, a vaporous or gase- 

 s medicament for application to the eyes, or even 

 a powder, or solid, to be used in treating the eye 

 topically, is called a collyriurn. (Anciently, any 

 suppository or medicated bougie was thus called.) C. 

 adstringens luteum. See Graefe 1 s Collyrium and 

 st's Eye-water. 

 Coloboma (kol-o-bo'-mah) [ko7jo36eiv, to mutilate : //., 

 ~ 'lobomata']. A cleavage or fissure of parts of the 

 e, of congenital or traumatic origin. Congenital C. 

 •e due to imperfect closure of fissures during fetal 

 development. C, Bridge, a variety in which the 

 pupil is separated from the coloboma by a narrow 

 thread of iris-tissue that stretches like a bridge from 

 one pillar of the coloboma to the other. 

 Colocentesis {kol-o-sen-te'-sis) \_k67.uv, colon ; kevttigic, 



puncture]. Surgical puncture of the colon. 

 Colocleisis {kol-o-kli'-sis) \_k6aov, colon ; K/.ecoig, clo- 

 sure]. Occlusion of the colon. 

 Colocynth {kol'-o-sinth). See Colocynthus. 

 Colocynthein ( kol-o-sin' -the-in ) [Ko/MKwdir, colo- 

 cynth], C^H^Ojj. A resinous decomposition-product 

 of colocynthin. 

 Colocynthin {kol-o-sin' '-thin) \_ko7.okvxSI^ , colocynth], 

 H. 4 23 . The active principle of colocynth ; an 

 tract, or a yellow amorphous, neutral, exceedingly 

 itter powder, soluble in water and alcohol, but not in 

 ether. It is an irritant hydragogue cathartic. Dose 

 gr. 1 ' 4 to 1. Unof. 

 Coiocynthis {kol-o-sin' -this) \ko7.okw^'ic, colocynth]. 

 Colocynth. The fruit of Citrullus coiocynthis, from which 

 the seeds and rind have been rejected. Its properties are 

 due to a bitter glucosid, colocynthin, C^H^O.^, the dose 

 of which is gr. ^L - i. It is a tonic and astringent pur- 

 gitive, and is used mainly as an ingredient of compound 

 cathartic pills. It is somewhat useful in colic, sciatic 

 rheumatism, and neuralgia. C, Ext., alcoholic. Dose 

 gr. ',-ii. C., Ext., Comp., contains colocynth ex- 

 tract 16, aloes 50, cardamom 6, resin of scammony 14, 

 soap 14, alcohol 10. Dose gr. v-xx. C, Pilula 

 Comp. (B. P.) contains colocynth, aloes, scammony, 

 sulphate of potassium and oil of cloves. Dose gr. 

 v-x. Pilulae Cathartic. Comp., compound cathartic 

 pills ; contain each, comp. ext. of colocynth gr. 1. 3, ab- 

 stract jalap gr. j. calomel gr. j, gamboge gr. %. Dose 

 j-i'j pills- Pil. catharticae vegetabiles, contain colo- 



1- 

 colocynth et hyoscyam. 



COLOR 





Colo 



Coloc 



cynth, hyoscyamus, jalap, leptandra, resin of podophy 

 him , oil of peppermint. Pil. colocynth et hyoscyan 



Dose gr. v-x. Laville's Anti-gout Remedy, con- 

 tains colocynthin 2}4, quinin, cinchonin aa 5, Span- 

 ish wine 800, alcohol 100, water 1000 parts. 



Colocynthitin { kol-o-sin' -th it- in) [ko'/jokvxSic, colo- 

 cynth]. A crystalline, tasteless, inactive principle of 

 colocynth. 



Colo -enteritis {kol-o-en-ter-i'-tis) \_ko7jov, colon; 

 tvrepov, an intestine; trie, inflammation]. Inflamma- 

 tion of the small and large intestine. See Entero- 

 colitis. 



Cologne {kol-on'). See Spiritus odoratus. C. Spirit, 

 rectified commercial alcohol. C. Glue. See Glue. 

 C. -water, aqua cologniensis. See Spiritus odoratus. 

 C. -water Habit, the use of cologne-water as a 

 drink for the purpose of experiencing the effects of 

 the alcohol which it contains. 



Colognese {kol-on-ez'). Same as Umber. 



Colomba, Colombo {kol-om'-bah, kol-om'-bo). See 

 Calumba. 



Colomiatti, Bacillus of. See Bacteria. 



Colon {ko'-lon) \k67.ov, nui/.ov, the colon]. The secon- 

 and principal part of the large intestine. In the 

 various parts of its course it is known as the ascending 

 C, the transverse C, the descending C, and the sig- 

 moid flexure. 



Colonia {ko-lon-i' -ah) . Synonym of Dysentery. 



Colonic {ko-lon'-ik) \ku7.ov, the colon]. Pertaining to 

 the colon. 



Colonitis {ko-lon-i' -tis). See Colitis. 



Colony {kol'-o-ne) [colonia, a colony]. A collection or 

 assemblage, as of microorganisms in a special culture. 

 C. Treatment, for the insane. See Gheel System. 



Colophony Resin {kol' -o-fo-ne) \_ko7mouv, a city of 

 Ionia]. Rosin. The solid residue left on distilling 

 off the volatile oil from crude turpentine. Rosin 

 is a brittle, tasteless, very friable solid, of smooth, 

 shining fracture, specific gravity about 1. 08. It 

 softens at 8o° C. (176 F.), and fuses completely 

 to a limpid, yellow liquid at 135 C. (275 F.). It is 

 insoluble in water, with difficulty soluble in alcohol, 

 freely soluble in ether, acetone, benzene, and fatty 

 oils. See Pesin. 



Coloproctia {kol-o-prok* '-te-ah) [k67.ov, colon ; irpuKroc, 

 anus] . The formation of an artificial colonic anus. 



Colopuncture {kol' -o-punk' -chur) \_k67mv, colon ; punc- 

 tura, puncture]. Same as Colocentesis. 



Coloquintida {kol-o-kivin'-tid-ah) [ML.]. An old 

 name for colocynth. 



Color {kull'-er) [color, color]. The differences in the 

 appearance of a thing seen, other than those due to 

 form and relief. The tint or hue of an object, de- 

 pendent upon the number of vibrations of the ethereal 

 stimulus. See Pigment. C. -blindness. See Blind- 

 ness. C, Complementary, any color that added to 

 another color, or to a mixture of colors, produces 

 white. C. -contrast, any two colors that, when mixed, 

 supplement the prevailing tone of the light. C.-cure, 

 the supposed therapeutic effect of exposure to variously 

 colored light. C. -hearing, the excitation of the 

 visual center for color through the auditory nerve ; the 

 perception of sound photisms. See Photism. C- 

 image, an image of a highly- colored object lighted 

 with so wide an aperture that the refraction-images are 

 drowned in the light. C. -sensation, depends on the 

 number of vibrations of the ether, the same as the 

 pitch of a note depends on the number of vibrations 

 of the sounding body. Hering's Theory of C.-s pre- 

 dicates disassimilation and assimilation (decomposition 

 and restitution) of the visual substance in vision — 

 white, red, and yellow representing the sensation of 

 disassimilation, black, green, and blue that of restitu- 

 tion. The Yottng-Helmholtz Theory assumes three 



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