CHI- 



48 



CHO- 



of the spinal column in the caudal 

 region of many vertebrates (zoo/.). 



chiasma (klaz'ma) n. [Gk. chiazein, 

 to mark with a cross.] A decussa- 

 tion, as optic chiasma (anat.). 



chlastoneural (klas'tonu'ral) a. [Gk. 

 chiastos, diagonally arranged ; neu- 

 ron, a nerve.] Appl. certain Gastro- 

 pods in which the visceral nerve 

 cords cross and form a figure 8 

 (zool.). 



chilaria (klla'ria) n. plu. [Gk. cheilos, 

 lip.] A pair of processes between 

 the sixth pair of appendages in 

 Limulus (zool.). 



chilidium (killd'lum) n. [Gk. cheilos, 

 lip.] A shelly plate covering the 

 deltidial fissure in the dorsal valve 

 of certain Brachiopods (zool.). 



chitln (kl'tln) n. [Gk. chiton, a tunic.] 

 A carbohydrate derivative forming 

 the skeletal substance in Arthropods 

 (zool.). 



chlamydate (klam'idat) a. [Gk. chla- 

 mys, a cloak.] Supplied with a 

 mantle (zool.). 



chlamydeous (klamid'eus) a. [Gk. 

 chlamys, a cloak.] Pert, flower and 

 envelope (bot.). 



chlamydospore (klam'idospor) n. [Gk. 

 chlamys, cloak ; sporos, seed.] A 

 thick-walled resting spore found in 

 many Fungi, as yeast (bof.). 



chloragen (klo'rajen) a. [Gk. chloros, 

 grass green ; genos, descent.] Appl. 

 yellow cells found in connection 

 with the alimentary canal of the 

 earthworm, and other Annelids ; 

 also chloragogen (zool.). 



chloranthy (kloran'thi) n. \G\a.chloros, 

 grass green ; anthos, flower.] Re- 

 version of floral leaves back to 

 ordinary green leaves (bot.). 



chlorophyll (klo'rofil) n. [Gk. chloros, 

 grass green ; phyllon, a leaf.] The 

 green colouring matter found in 

 plants and in some animals (biol.). 



chloroplast (klo'roplast) n. [Gk. 

 chloros, grass green ; plastos, 

 moulded.] A chlorophyll-carrying 

 plastid (bot.). 



chloroplastid (klo'roplas'tid) n. [Gk. 

 chloros, grass green ; plastos, 

 moulded.] A minute granule or 

 plastid containing chlorophyll, 

 found in plant-cells exposed to light 

 (biol.). 



chlorosis (kloro'sls) ;/. [Gk. chloros, 

 grass green.] A diseased condition 

 in plants owing to lack of certain 

 minerals, due mainly to want of 

 light (bot.). 



chlorotic (klorot'ik) a. [Gk. chloros, 

 grass green.] Appl. plants or 

 organs of plants devoid of chloro- 

 phyll (bot.). 



choana (ko'ana) n. [Gk. choane, 

 funnel.] Any funnel-shaped open- 

 ing (anat.). 



choanocyte (ko'anoslt) n. [Gk choane, 

 funnel ; kytos, hollow.] A cell with 

 a funnel-shaped rim or collar round 

 the base of the flagellum (zool.). 



choanoid (ko'anoid) a. [Gk. choane, 

 funnel ; eidos, like.] Funnel- 

 shaped; appi.eye. muscle in Reptiles 

 (zool.). 



choanosome (ko'anosom) n. [Gk. 

 choane, funnel ; soma, body.] In 

 sponges, the inner layer with flagel- 

 late cells (zool.). 



choledoch (kol'edok) a. [Gk. chole, 

 bile ; dochos, containing.] Appl. 

 common bile duct. 



choleic (kole'ik) a. [Gk. chole, bile.] 

 Pert, acid contained in ox bile 

 (Phys.). 



cholesterin (koles'terln) n. [Gk. chole, 

 bile ; stereos, solid.] A white fatty 

 alcohol found in nerve tissue, bile, 

 yolk, and other animal substances 

 (phys.). ^ 



choline (ko'lm, -en) n. [Gk. chole, 

 bile.] A crystalline base found in 

 plants and animals with composi- 

 tion C 6 H 16 O 2 N (phys.). 



cholochrome (ko'lokrom) . [Gk. 

 chole, bile ; chroma, colour.] A bile 

 pigment (phys.). 



cholohaematin (ko'lohe'matm) n. [Gk. 

 chole, bile ; haima, blood.] A pig- 

 ment developed in the bile of 

 ruminants after exposure to the air 

 (Phys.). 



chondral (kon'dral) a. [Gk. chondros, 

 cartilage.] Pert, cartilage (anat.). 



chondrification (kon'driflka'shun) n. 

 [Gk. chondros, cartilage ; L. facere, 

 to make.] Conversion into cartil- 

 age (phys.). 



chondrigen (kon'drijen) n. [Gk. 

 chondros, cartilage ; genos, descent.] 

 The base matrix of all cartilaginous 

 substance, a collagen (phys.). 



