GLOSSARY. 



31 



Cbloro'sis (Gr. xAwpos, chloros, yel- 

 lowish-green). A diseased state, 

 characterised by poverty of blood, 

 and in which a greenish colour of 

 the skin is a prominent symptom. 



Chlorot'ic (Gr. x\upos, chloros, yel- 

 lowish-green). Relating to or 

 having chlorosis. 



Choke-damp. Carbonic acid gas dis- 

 engaged in mines. 



Cho'lagogue (Gr. x*-% chole, bile ; 

 ayta, ago, I lead). Having the 

 property of causing an evacuation 

 of bile. 



Choled'ochus (Gr. xoAyj, chole, bile ; 

 SexofJ-cu, dech'omai, I receive). Re- 

 ceiving bile ; applied to the tube 

 formed by the junction of the cystic 

 and hepatic ducts. 



Chol'era (Gr. x x ^ chole, bile : /Sew, 

 rheo, I flow). An epidemic disease, 

 characterised by diarrhoea and 

 vomiting, and symptoms of depres- 

 sion of the powers of life. 



Choles'terin (Gr. x A7 ?> chole, bile ; 

 (TTepfos, ster'eos, solid). A sub- 

 stance having the properties of fat, 

 found principally in bile. 



Chondrin (Gr. x.ovpos, chondros, 

 a cartilage or gristle). A substance 

 somewhat resembling gelatine or 

 animal jelly, produced by the ac- 

 tion of hot water on cartilage. 



Chon'drites (Lat. chondrus, a kind of 

 sea-weed). Fossil marine plants 

 in the chalk and other formations. 



Chondropteryg'ii (Gr. x ov ^P os t t'hon- 

 dros, cartilage or gristle ; ifrepvyiov, 

 pteru!gion, a little wing). An order 

 of fishes, the fin-bones of which are 

 composed of gristle only. 



Chord (Gr. xP^ chorde, a string). 

 In geometry, a line extending from 

 one end of the arc of a circle to 

 the other ; in music, the union of 

 two or more sounds uttered at once, 

 forming a harmony. 



Chor'ea (Gr. xP s > choros, a dance). 

 The disease commonly called St. 

 Vitus's Dance, consisting of in- 

 voluntary movements of the mus- 

 cles, consciousness being retained. 



Cho'rion(Gr.xpew, chorea, I contain). 

 The external membrane which 

 covers the fetus. 



Cho'risis (Gr. xwp'fo chorZzo, I sepa- 

 rate). A separation; in botany, 

 applied to the increase in number 

 of the parts of a flower produced by 

 the splitting of organs during their 

 development. 



Chorog'raphy (Gr. x u Ps> choros, a 

 place or region ; ypa(pu, grapho, I 

 write or describe). The descrip- 

 tion of a region or country. 



Chor'oid (Gr. x^P 10 ^ chorion, the 

 chorion ; eiSoy, eidos, shape). Re- 

 sembling the chorion : applied to 

 a coat of the eye, also to a network 

 of blood-vessels in the brain. 



Chro'mate (Gr. xpco/ia, chroma, co- 

 lour). A compound of chromic 

 acid with a base. 



Chromat'ic (Gr. XP^OJ chroma, co- 

 lour). Relating to colour ; in 

 music, the chromatic scale is that 

 which proceeds by semitonic inter- 

 vals. 



Chro'matrope (Gr. XP W M, chroma, 

 colour ; TpeTrco, trepo, I turn). An 

 optical apparatus for exhibiting the 

 appearance of a stream of colours, 

 by the revolution of a double set of 

 coloured circular arcs. 



Chro'mogen (Gr. xp w / ua > chroma, co- 

 lour ; ysvvav), gennao, I produce). 

 The colouring matter of plants. 



Chronol'ogy (Gr. XP OV0 ^ chronos, 

 time ; ^0705, logos, a word or de- 

 scription). The arrangement of 

 events in order of time. 



Chronom/eter (Gr. XP OI/OS chronos, 

 time ; fj-erpoi/, metron, a mea- 

 sure). An instrument for measur- 

 ing time. 



Chronomet'ric (Gr. xP ovos i chronos, 

 time ; /uerpoi/, metron, a measure). 

 Relating to or employed in the 

 measure of time. 



Chro'tici (Gr. xpws, chros, the skin). 

 A term proposed to be applied to 

 diseases of the skin. 



Chrysalis (Gr. xP u<ros > chrusos, gold). 

 The form which certain insects as- 

 sume between the caterpillar and 

 the winged states ; so called be- 

 cause yellow in some. 



Chyle (Gr. x uAos > chulos, juice). The 

 milky liquid prepared from the 

 food, to be absorbed by the lacteal 



