CHROMATOPSIA 



atopsia {kro-mat-op' -se-ah) [^pwua, color ; oijhc, 

 vision]. Abnormal sensation of color. It may be 

 due to disorders of the optic centers, or to drugs, 

 especially santonin. 

 Chromatopsy {kro' -mat-op-se). See Chromatopsia. 

 Chromatoptometry {kro-mat-op-tom' -et-re) [_xpa/ta, 

 color; o-7£iv, to see ; fikrpov, a measure] . The test- 

 of the sensibility of the eye with respect to color- 

 rception. 



imatoscope [kro-mat' -o-skop) [xP^ua, color; 

 to observe]. An instrument for determining 

 e refractive index of colored light, 

 omatoscopy ( kro-mat-os' '-ko-pe) \_xpuua, color ; 

 - iv, to observe]. The determination of the color 

 of objects. 

 Chromatosis {kro-mat-o' -sis) [xpitua, color] . Pigmen- 

 on ; a pathologic process or pigmentary disease 

 insisting in a deposit of coloring-matter in a locality 

 where it is usually not present, or in excessive quan- 

 ity in regions where pigment normally e.\ 



•matosome {kro-mat' -o-som) \jxpCma, color; cuua, 

 body] . In biology, the ' ' nuclear rods ' ' of the nucleus. 

 Chromaruria {kro-mat -u'-re-ah) [xpupa, color; oipov, 



urine]. Abnormal coloration of the urine. 

 Chrome {krom) \_xpuua, color]. Chromium, q.v. C- 

 um. See Pigments, Conspectus of. C. -black. 

 Pigments, Conspectus of. C.-carmin. Same as 

 "hrome-red. C. chlorid. See Pigments, Conspectus 

 % C. -garnet. Same as Chrome-red. C. -green. See 

 pectus of. C. -orange. SameasC7/r«nf- 

 ;•:'. C.-red, a pigment; basic lead chromate. See 

 igments, Conspectus of. C. -vermilion. Same as 

 rome-red. C. -yellow, lead chromate, a pigment. 



Chromium, and Pigments, Conspectus of. 

 mesthesia {krom-es-the / -ze-ah) [xpuua, color; 

 erception by the senses]. The association 

 of colors with words, letters, and sounds. 

 Chromhidrosis {krom-hid-ro> '-sis). Same as Chromid- 



Chromic {krom'-ik) [^pwua, color]. Pertaining to or 

 made from chromium. C. Acid, See Acid. C. Acid 

 Test. See Tests, Table of. 



Chromicize {kro'-mis-iz). To impregnate with chromic 

 acid. 



midrosis (krom-id-ro'-sis) [^p<Jua, color; idpug, 

 weat]. A rare condition of the sweat in which it is 

 "ously colored, being bluish, blackish, reddish, green- 

 ish, or yellowish. Black sweat {Seborrhcea nigricans) 

 occurs usually in hysterical girls, the part affected being 

 the face. It is associated with chronic constipation and 

 due to the presence of indican in the sweat. Red 

 •a!, hematidrosis , may be due to an exudation of 

 blood into the sweat-glands, or to the presence of a 

 microorganism in the sweat. See Micrococcus Jwema- 

 todes, Babes, under Bacteria, Table of 

 " mium {kro'-me-um) [xpuua color]. Cr=52.2; 

 quantivalence II and IV. One of the elements of 

 the iron group. The various salts of chromium, 

 especially chromic acid, Cr.O,, are much used in the 

 manufacture of pigments and in dyeing textile fabrics. 

 All are poisonous. Potassium dichromate (bichromate 

 of potash), K.,Cr,0., is used in various pharmaceutic 

 and chemic operations. C. -green. Same as Chrome- 



Chromocrinia ( kro-mo-kHn'-e-ah) [^-pwort, color ; 

 Kpivea; to separate]. The secretion of coloring- 

 matter, as in the sweat, etc. 



Chromocytometer {kro-mo-si-tom'-et-er) [xP&ua, 

 color; Kirroc, cell; uirpov, a measure]. An instru- 

 ment for estimating the proportion of hemoglobin 

 present in the blood. 



Chromocytometry {kro-mo-si-tom' -et-re) [xp&ua, 



occi 



MM) 

 bio 

 mic 

 todi 

 Chro 

 qua 



•V- 



295 CHRONIZOOSPORE 



color ; k'l roc, cell ; fierpov, a measure ; voooc, disease]. 

 The estimation of hemoglobin by means of the 

 chromocytometer. 



Chromodermatosis {kro-mo-der-mat-t/ -sis) r ^xp". ua > 

 color ; dipua, skin] . A skin-disease characterized by 

 discoloration of the surface. 



Chromogen {kro / -mo-jen) [\poua, color; yeveatc, pro- 

 duction]. Any principle of the animal or vegetable 

 economy which (though it is itself not of any pro- 

 nounced color) is susceptible, under suitable circum- 

 stances, of being changed into a coloring-matter. 



Chromogenic {kro-mo-jen'-ik) [;rpwu<z, color; ytveau;, 

 production]. I. Relating to chromogen. 2. Color- 

 producing. 



Chromoleucite {kro-mo-lu'-sit) [jpw/ia, color; acweoc, 

 white]. Same as Chromoplastid. 



Chromopare {kro'-mo-pdr) [,\/KJ ( ua, color]. In biology, 

 applied by Beyerinck to those chromogenic bacteria 

 that excrete the pigment, remaining colorless them- 

 selves. Cf. Chromophore and Para-chromophor. 



Chromophan {kro' -mo-fan) [xpufia, color; . poire tv, to 

 appear]. In biology, the pigment of the inner seg- 

 ments of the retinal cones of certain animals. There 

 are at least three varieties, chlorophan, rhodophan, 

 xanthophan. (Ruhnes). 



Chromophile {kro'-mo-fil). Same as Chrcmophilous. 



Chromophilous {kro-moff r -U-us) [ xP&f- * color ; 6;aoc, 

 loving]. Readily stained; easily absorbing color; 

 applied to tissues prepared for microscopic study. 



Chromophore {kro* -mo-for) [^/owpa, color; yipeiv, to 

 bear]. In biology, applied by Beyerinck to those 

 chromogenic bacteria that possess pigment as an 

 integral part of their organism. Cf. Chromopare and 

 Para-chromophor. 



Chromophytosis (kro-mof-ty-sis) [xP^ua, color; 

 (fvrov, a plant]. I. Any microscopic plant-growth that 

 produces a discoloration of the skin in which it grows ; 

 any pigmentary skin-disease caused by microscopic 

 vegetation. 2. A synonym of Tinea versicolor, or 

 Eic/istedfs Disease. See Tinea versicolor, and Diseases, 

 Table of. 



Chromoplastid, or Chromoplastidule {kro-mo-plas / ~ 

 tid, or kro-mo-plas' -tid-iil) \jxputia, color; ir'/aooetv, 

 to form]. In biology, a pigment-granule imbedded 

 in the protoplasm of a plant or animal. It is also 

 called chromoleucite. 



Chromopsia {krom-op J '-se-ah). See Chromatopsia. 



Chromoptometer {kro-mop-tom'-et-er) [xpuua, color; 

 fikrpov, a measure]. A contrivance for determining 

 the extent of development of color-vision. 



Chromosome {kro'-mo-som) [xP^ua, color; crwua, 

 body]. Any one of the nuclear chromatin-nbrils oi 

 a cell. According to some observers there is only one 

 such fibril in closely intertwined folds. Others say 

 that the chromosomes are many, and of two varieties, 

 the fine and the coarse. 



Chromostroboscope {kro-mo-stro' -bo-skop) rjrp£>ua, 

 color; <rrp6f}oc, a twisting; ano— eiv, to inspect]. A 

 device for showing the persistence of visual impres- 

 sions of color. 



Chromule {kro'-mul) [xf&ua, color; v'/.tj, matter]. In 

 biology, coloring-matter in plants, especially when not 

 green, or when liquid. 



Chronic {kron'-ik) [^powo, time]. Long-continued; 

 of long duration ; slow of progress ; opposed to acute, 

 and to subacute. 



Chronicity {kro-nis'-it-e) [^potw, time]. The state 

 of being chronic or long-continued. 



Chronizoospore {kro-niz-o' -o-spor) \Kp6vioc, late ; r uov, 

 an animal ; a~opa, seed]. One of the microzoogoni- 

 dia or minute zoospores or resting-spores, produced by 

 the water-net, Hydrodictyon. 



