CHO 



82 



CHR 



from lendo, I stretch out), the 

 tendinous chords of the heart 

 which connect the carneae col- 

 umnse to the valves guarding the 

 auricular orifice. 



chorea, n., Icor-e'a (Gr. choreia, 

 a dance), St. Vitus's dance; a 

 disease attended with irregular 

 and involuntary movements of the 

 voluntary muscles, except when 

 asleep, occurring mostly in the 

 young. 



chorion, n., Tcor'-i-on (Gr. chorion, 

 skin or leather), in anat., the 

 external membrane investing the 

 foetus in the womb; in bot., a 

 fluid pulp composing the nucleus 

 of the ovule in the earliest stage : 

 choroid, a., ktir'-oyd (Gr. eidos, 

 resemblance), resembling the 

 chorion; denoting a highly vas- 

 cular membrane : n., the mem- 

 brane of the eye, situated between 

 the sclerotica and the retina. 



chorisis, n., kor'is-is (Gi: chorizo, 

 I separate), in bot., separation of 

 a lamina from one part of an 

 organ, so as to form a scale or a 

 doubling of the organ : chorisa- 

 tion, n., kdr''fa'd''Shtin, in same 

 sense. 



Choristosporei, n. plu., lcor-ist'6- 

 spor'e-i (Gr. choristos, separate, 

 distinct; spora, a seed), a Sub- 

 order of Algae, consisting of rose 

 or purple - coloured sea weeds, 

 with fronds formed of a single 

 row of articulated cells. 



chroma, n., Icrdm'-a (Gr. chroma, 

 colour), colour; in composition, 

 chromo-: chromatism, n., Icrom'- 

 at-izm, also chromism, n., krom' 

 $zm, in bot., an unnatural colour- 

 ing of plants and leaves. 



chromatometer, n., kr dm' at- 8m' 

 Zt-er (Gr. chroma, colour, cTirom- 

 dtos, of colour ; metron, a measure), 

 a measurer of colours, especially 

 as applied to plants. 



chromatophores, n. plu., krom-at'- 

 6-forz (Gr. chroma, colour, 

 chromatos, of colour; phoreo, 1 

 carry), little sacs containing pig- 



ment - granules, found in the 

 integument of cuttle - fishes : 

 chromatophorons, a., krom'dt- 

 ty'-dr-fts, containing or secreting 

 colouring matter. 



chromatosis, n., krdm'dt-oz''is(GT. 

 chroma, colour), constitutional 

 discoloration. 



chromogen, n., krdm'-d-jen (Gr. 

 chroma, colour ; gennao, I pro- 

 duce), a vegetable colouring 

 matter, acted upon by acids and 

 alkalies to produce red, yellow, or 

 green tints : chromule, n. , krom- 

 til (a diminutive of Gr. chroma, 

 colour), the colouring matter of 

 flowers; the colouring matter of 

 plants except green. 



chrysalis, n., Tcris'al-is (Gr. chrus- 

 allus, L. chrysalis, the gold- 

 coloured chrysalis of the butter- 

 fly from Gr. chrusos, gold), the 

 second stage in the state of such 

 insects as the butterfly, the moth, 

 etc., so named as sometimes ex- 

 hibiting a golden lustre ; some 

 spell chrysalid, Tens'- al-id. 



Chrysanthemum, n. , kris-anth'$m- 

 um(Gr. chrusos, gold; anthemion, 

 a flower, a blossom), a genus of 

 plants, Ord. Compositse, Sub-ord. 

 Corymbiferse, so called alluding 

 to some of the flowers being 

 yellow ; the numerous species 

 are exceedingly beautiful : Chrys- 

 anthemum carneum, kdr'ne-um 

 (L. carneus, fleshy from cdro, 

 flesh, carnis, of flesh), a species, 

 the flowers of which are said to 

 destroy fleas. 



Chrysobalanese, n. plu., lcris'6' 

 bal'dn'-8-e (Gr. chrmos, gold ; 

 balanos, an acorn), a Sub-order 

 of the Order of plants Rosacese, 

 this Sub-order being chiefly nat- 

 ives of tropical parts of Africa 

 and America : Chrysobalanus, 

 n., kris'd'bdl'dn-us, a genus of 

 plants, the species bearing the 

 common edible fruits, rasp- 

 berries, strawberries, brambles,' 

 apples, pears, plums, cherries, 

 quinces, almonds, peaches, etc. 



