CRU 



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crusta petrosa, Icrust'a p&l-rdz'-a 

 (L. crusta, skin, bark ; petrosus, 

 very rocky from Gr. and L. 

 petra, a rock), a rocky crust ; the 

 layer of true bone which invests 

 the root part of the teeth, or the 

 part not protected by enamel. 



Cryptocarya, n., kript'o-kdr'-i-a 

 (Gr. kruptos, hidden ; karua, 

 a walnut alluding to the fruit 

 oeing covered), a genus of shrubs, 

 Ord. Lauracese : Cryptocarya 

 moschata, mtis-kdt'-a (Mod. L. 

 moschdtus, having a smell like 

 musk from Arsib.mosch or mesk, 

 musk), a species which produces 

 the Brazilian nutmegs. 



cryptogamia, n., lcript'o-gdm'i-a\ 

 (Gr. kruptos, hidden, concealed ; 

 gamos, marriage), a general name i 

 applied to all the lower orders of 

 plants which have no apparent 1 

 or true flowers, such as mush-; 

 rooms, lichens, mosses, seaweeds, 

 and ferns : cryptoganwms, a., 

 kript-tig'am-us, having their 

 organs of reproduction obscure : 

 cryptogamic, a., kript'-o-gam'-ik, 

 in same sense as cryptogamous. 



cryptorchismus, n., kript'tir-kfa' 

 mus (Gr. kruptos, concealed; 

 orchis, the testicles), the reten- 

 tion of the testes in the abdomen. 



cryptos, a., Icript'-ds (Gr. kruptos, 

 concealed, hidden), concealed ; 

 not readily observed ; in compos- 

 ition, crypto-. 



cryptostomata, n. plu., kript'o- 

 sttim'at-a (Gr. kruptos, hidden ; 

 stoma, a mouth, stomdta, 

 mouths), circular nuclei on the 

 surfaces of some algse. 



crystalloid, a., Tcrist'-al-oyd (Gr. 

 krustallos, L. crystallum, ice, 

 rock crystal ; Gr. eidos, resemb- 

 lance), crystalline ; resembling 

 crystal; in bot., applied to a 

 portion of the protoplasmic sub- 

 stance of cells having a crystal 

 line form. 



ctenocyst, n., ten'o-sist (Gr. kteis, 

 a comb, ktenos, of a comb ; 

 kustis, a bag, a bladder), the 



sense organ in the ctenophora : 

 ctenoid, a., t&n'dyd (Gr. eidos, 

 resemblance), having the appear- 

 ance of a comb ; applied to those 

 scales of fishes the hinder marg- 

 ins of which are fringed with 

 spines having the appearance of 

 a comb : Ctenophora, n. plu., 

 i&n-of-or-a, (Gr. phareo, I bear), 

 an Order of Actinozoa, including 

 sea creatures which swim by 

 means of bands of cilia arranged 

 in comb-like plates ; also called 

 ctenophores, n. plu., ti&nf-d-fdrz. 



Cubeba, n., ku-beb<a (Arab, cu- 

 babah), a small genus of plants, 

 Ord. Piperacese : Cubeba officin- 

 alis, tiffas'.m-ar-is (L. officinalis, 

 officinal from officlna, a work- 

 shop), ithe fruit of ;a climbing 

 plant of Java and other Indian 

 islands, used, under the name 

 ' cubeb-pepper, ' or 'icubebs, 1 in 

 arresting discharges from mucous 

 membranes ; also called ' Piper 

 cubeba.' 



cubit, n. , Tctib'-it, also cubitus, n. , 

 kub'it-us (L. cubitum, Gr. kubiton, 

 the elbow or bending of the arm), 

 the fore-arm. 



cuboid, a., kub'oyd (Gr. kubos, a 

 cube ; eidos, resemblance), ap- 

 plied to a bone situated at the 

 outer side of the foot. 



cucullaris, a., ku'-kul-ldr'-is (L. 

 cucullus, a hood), the trapezius 

 muscle: cucullate, &.,ku'kul f -ldt, 

 in bot., hooded ; formed like a 

 hood. 



Cucumis, n., kuk'tim-is (L. 

 cucumis, a cucumber, cuctimeris, 

 of a cucumber), an extensively 

 cultivated genus of plants for 

 culinary purposes, Ord. Cucurbit- 

 acese : Cucumis melo, mel'-o (Gr. 

 melon, L. melo, a melon), the 

 common melon : C. sativus, sat> 

 iv f -us (L. sativus, that is fit to 

 be planted), the cucumber : C. 

 colocynthis, kol'-d-smth'-is (Gr. 

 kolokunthis, the wild gourd), a 

 species which yields the globular 

 fruit ' coloquintida ' or 'bitter- 



