COLLOOIL M 



311 



' OLOR 



Collodium (kol-o'-de-um). Se< Pyroxylin. 



Colloid (kol'-oid) [ko/>«, glue], i. A non-crystalliza 

 ble and generally soluble organic substance. 

 Dialysis. 2. A mobile pathologic material, jelly tiki . 

 firmer than mucus, ami differing in it ^ reactions from 

 albumin and from lardacein. 3. Having (In- nature 

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

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

 of the Skin, a rare disease, o< 1 lining chiefly on the 

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

 translucent, flattish elevations, and yielding by pres- 

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

 ium . 



Colloma (kol-o f -maK) [mi/'/a, glue; bfta, a tumor: />/., 

 Collomata~\. A cystic tumor containing a gelatiniform, 

 amorphous, and non-vascular substance. 



Collonema (kol-o-ne / -mah) [h<i/'/<i, glue; vfjua, tissue: 

 pi. , Collonemata"^. Myxoma, or myxosarcoma. 



Collum (kol'-ttm) [L.]. The neck; especially the 

 anterior part of the neck. C. distortum. Synonym 

 of Torticollis. 



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



Collyrium [kol-ir'-e-um) [w)/./i,»r, an eye-salve: pi. , 

 Colfyria], An astringent, antiseptic, or medicinal 

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

 ous medicament for application to the eyes, or even 

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

 topically, is called a collyrium. (Anciently, any 

 suppository or medicated bougie was thus called.) C. 

 adstringens luteum. See Graefe s Collyrium and 

 fforsfs Eye-water. 



Coloboma \kol-o-bo' -mah)*\_Kt>'/ oIoeiv, to mutilate: //. , 

 Colobomata\. A cleavage or fissure of parts of the 

 eye, of congenital or traumatic origin. Congenital C. 

 are 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 f -sis) \_k67mv, colon ; kevttioic, 

 puncture]. Surgical puncture of the colon. 



Colocleisis (kol-o-kli'-sis) [ko'/.ov, colon ; K/.elatc, clo- 

 sure]. Occlusion of the colon. 



Colocynth (kol'-o-sintk). See Colocynthus. 



Colocynthein ( kol-o-sin' -the-in ) [ko/.okwO'ic , colo- 

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

 of colocynthin. 



Colocynthin (kol-o-sin' thin) [m'/oKwdic, colocynth], 

 C-jjH^O^. The active principle of colocynth ; an 

 extract, or a yellow amorphous, neutral, exceedingly 

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

 ether. It is an irritant hydragogue cathartic. Dose 



er. l% to I. 



Unof. 



Colocynthis [kol-o-sin' -this) [koKokovBiq, colocynth]. 

 Colocynth. The fruit of C. citrullus, from which the 

 seeds and rind have been rejected. Its properties are 

 due to a bitter glucosid, colocynthin. C 56 H 8t 23 , the dose 

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

 gative, 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. ]/2-V). 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 > 1 < icj nth gr. 1. 3, ab- 

 stract jalap gr. j, calomel gr. j, gamboge gr. J^. Dose 

 j-iij pills. Pil. catharticae vegetabiles, contain colo- 

 cynth, hyoscyamus, jalap, leptandra, resin of podophyl- 

 lum, oil of peppermint. Pil. colocynth et hyoscyam. 



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

 tains colocynthin 2.y z , quinin, cinchonirj aa - 

 ish wine 800, alcohol loo, water 1000 parts. 

 Colocynthitin (kol-o-sin' -tkii-in) [koao < olo- 



i yniii] A crystalline, tasteless, inactive principle of 

 colocynth. 



Colo-enteritis (kol-o-en-ter-V ' -tis ) [/.ww, col 



, an intestine; trig, inflammation]. Inflamma- 

 tion of the small and large intestine. See Enlero- 

 < otitis. 



Cologne {kol-on'\. See Spiritus odoralus. 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 Cinder. 



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

 Calumba. 



Colomiatti, Bacillus of. See Bacteria. 



Colon (ko'-lon) \k67av, kuIXov, 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 

 moid flexure. 



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



Colonic (fco-lon'-ik) \ku?iov, the colon]. Pertaining to 

 the colon. 



Colonitis (ko-lon-i'-tis). See Coliti . 



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) [/co/kxpwv, 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 Resin. 



Coloproctia (kol-o-prok' -te-ali) \_k67.ov, colon ; irpoicrdg, 

 anus]. The formation of an artificial colonic anus. 



Colopuncture (kol' '-o-punk' -chur) \_ko'/.ov, colon ; punc- 

 tura, puncture]. Same as Coloccnt, 



Coloquintida (kol-o-kwin' -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 /'holism. 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. Hcring 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 Young- Helmholtz Theory assumes three 



