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GLOSSARY 



Cae'cum (L. caecus, blind gut). A blind 



sac. 



Cal-ca're-ous (L. calcarius, limestone, 

 limy). Containing lime or calcium car- 

 bonate. 

 Can'cer (L. crab, ulcer, sign of the zodiac). 

 One of a variety of malignant tumors. 

 Cap'il-Ia-ry (L. capillus, hair). Tiny blood 

 vessel with walls of one cell layer 

 which connects arterioles to venules. 

 Car'bo-hy"drate ( L. carbo, coal; Gr. hijdor, 

 water ) . An organic compound ( starch, 

 sugar) containing carbon, hydrogen, 

 and oxygen in which the last two atoms 

 are in the same proportions as in water 

 (H.O). 

 Car'di-ac (Gr. kardia, the heart). Pertain- 

 ing to the heart. 

 Car-niv'o-re (L. caro, flesh; vorare, to de- 

 vour). Flesh-eaters. 

 Cas-tra'tion (L. castratio). The act of re- 

 moving the sex glands, usually from 

 males. 

 Ca-tab'o-lism (Gr. kata, down; hallein, to 



throw). Destructive metabolism. 

 Ca-tal'y-st (Gr. kata, down; lysis, a loos- 

 ing). A substance that alters the rate 

 of a chemical reaction, which would 

 go very slowly or not at all without it. 

 Cau'dal (L. cauda, tail). Pertaining to the 



tail. 

 Cen'tro-some (Gr. kentron, a center; soma, 

 body). A tiny differentiated area of a 

 cell near the nucleus containing the 

 centriole. 

 Cen'tri-ole (Gr. kentron, a center). A small 

 body in the centrosome around which 

 the asters form during mitosis. 

 Ce-pharic (Gr. kephale, the head). Per- 

 taining to or near the head. 

 Cer'e-ber'lum (L. diminutive of cerebrum, 

 brain ) . The part of the brain in higher 

 vertebrates which controls muscular 

 coordination. 

 Cer'e-brum (L. cerebrum, brain). The an- 

 terior part of the brain, which is con- 

 spicuous in man, and is the seat of 

 thought, memory, and reasoning. 



Cer'vi-cal (L. cervix, neck). Pertaining to 



the neck. 

 Char'ac-ter (Gr. charassein, to engrave). 

 Used specifically in biology to desig- 

 nate any trait, function, or structure of 

 an organism. 

 Chi'tin (Gr. chiton, a kind of garment, 

 tunic). A horny substance forming the 

 skeleton of arthropods and other ani- 

 mals. 

 Chlo'ro-phyl (Gr. chloros, green; phyelon, 

 a leaf). A green pigment in plants es- 

 sential for photosynthesis. 

 Cho'a-no-cyte (Gr. choane, funnel; kytos, 

 hollow). Flagellated cells with collars, 

 typical of porifera. 

 Chor^date (Gr. chord, string). An animal 

 possessing a notochord which subse- 

 quently may be replaced by backbone 

 (tunicates, vertebrates, etc.). 

 Chro'ma-tin ( Gr. chroma, color ) . The dark, 

 staining material of the chromo- 

 somes. 

 Chro'ma-to-phore (Gr. chroma, color; phe- 

 rein, to bear ) . Pigment-containing cells 

 or bodies in the skin of certain animals, 

 such as the frog and some reptiles 

 which are able to change their skin 

 color. 

 Chro'mo-mere (Gr. chroma, color; meros, 

 part). One of the many linearly ar- 

 ranged bead-like structures found on a 

 chromosome. 

 Chro-mo-nem'a (Gr. chroma, color; nema, 

 thread). Thread-like strands of chro- 

 matin visible in the nucleus during 

 mitosis and in some cells during inter- 

 phase. 

 Chro'mo-somes (Gr. chroma, color; soma, 

 body). Deeply staining rod-shaped 

 bodies within the nucleus and conspic- 

 uously visible during cell division. 

 They contain the genes. 

 Cil'i-a (L. cilium, eyelid). Microscopic, 

 hair-like projections from certain cells 

 which vibrate, causing fluid movement. 

 Class ( L. classis, collection ) . Principal sub- 

 division of a phylum. 



