CRY 



C U N 



and its posterior portion is received into 

 a depression on the fore part of the vi- 

 treous humour. It has two convex sur- 

 faces, like a common lens, the anterior 

 being the less convex ; the two being 

 formed of segments of spheres of unequal 

 size. 



CRYSTALI'ZABLE. JThat is capable of 



CRYSTALLI'ZABLE, $ being crystallized. 



CRYSTALIZA'TION. ) (crystallisation, Fr. 



CRYSTALLIZA'TION. $ cristallisazione, It.) 

 A methodical arrangement of the particles 

 of matter according to fixed laws ; conge- 

 lation into crystals. 



CRY'STALLIZED. Formed into crystals. 



CRYSTALLO'GRAPHER. } (from KpvoraXXoc 



CRYSTALO'GRAPHER. $ and -ypa'^w, Gr.) 

 One who describes crystals. The crystal- 

 lographer has shewn that the several in- 

 gredients of all kinds of crystalline rocks 

 are composed of molecules which are 

 invisibly minute. 



CRYSTALLO'GRAPHY. The science of crys- 

 tallization. 



CTENOI'DEAN. Belonging to the third 

 order of fishes, according to the arrange- 

 ment of M. Agassiz. 



CTENOI'DIAN. (from KTSIQ, pecten, a comb ; 

 and tides, Gr.) The third order of fishes 

 in the arrangement of M. Agassiz. The 

 cteno'idians have their scales jagged on 

 the posterior margin, resembling the teeth 

 of a comb, from which circumstance they 

 derive their name ; the perch is an ex- 

 ample. The cteno'idians first appear at 

 the commencement of the cretaceous for- 

 mations, succeeding the placoidean and 

 ganoidian orders. Prof. Buckland. 



CU'BATURE. The finding exactly the solid 

 content of any proposed body. 



CUBE, (from Kvj3og, Gr. cubus, Lat. cube, 

 Fr. cubo, It.) A regular solid body con- 

 sisting of six square and equal faces, with 

 right, and therefore equal, angles : a die 

 is a small cube ; a prism contained by six 

 equal squares. 



CUBE-ORE. A name given to the mineral 

 hexahedral olivenite. 



CU'BIC. ) (cubisch, Germ.) Having the 



CU'BICAL. $ form or properties of a cube. 



CU'BICALNESS. The state of being cubical. 



CU'BIFORM. Of the form, or shape, of a 

 cube. 



CU'BIT. 



1. A measure, according to Dr. Arbuth- 

 not, equal to one foot nine inches, and 

 888 decimal parts. Home. 



2. That part of the arm which extends 

 from the elbow to the wrist. 



CU'BITAL. (cubital, Fr.) Relating to the 



fore arm, or cubit. 

 CU'BIZITE. A name given by Wenrer to 



analcime. 



CUBOI'D. > Having the form of a cube; 

 CUBOI'DAL. \ cubiform. 



CUBOI'DBS. A bone of the foot, in shape 

 somewhat resembling a cube ; it is placed 

 at the fore and outer part of the tarsus. 



CU'BO-OCTAHE'DRAL. A combination of 

 a cube and an octahedron. 



CUCU'LLATE. > (cucullatus^i.} Hooded ; 



CUCU'LLATED. $ having the shape of a 

 hood. Applied to leaves when their 

 edges meet in the lower and expand to- 

 wards the upper part. 



CUCUMERI'NA. (from cucumer, Lat.) A 

 species of fossil spine belonging to the 

 echinus, and possessing something of the 

 form of a cucumber, whence its name is 

 derived. There are several varieties. 



CUCU'MERINE. Fossil spines of the species 

 cucumerina. Several varieties of cucu- 

 merine spines are figured in Parkinson's 

 Organic Remains. 



CUI'RASS. (cuirasse, Fr. corazza, It.) A 

 defensive armour which protects the body 

 from the shoulders to the waist. 



CULM. (Welsh.) 



1. A kind of fossil coal, of indifferent 

 quality, burning with little flame, and 

 emitting a disagreeable smell. 



2. An herbaceous stem peculiar to grasses, 

 rushes, and some other plants allied to 

 them. Culms are either hollow or solid, 

 jointed or without joints, round or trian- 

 gular, rough or smooth, hairy or downy, 

 and bear both leaves and flowers. 



CU'LTRATED. (cultratus, Lat.) Sharp- 

 edged. 



CU'MBRIAN SYSTEM. The Cumbrian or 

 slate system, as described by Professor 

 Sedgwick, extends over a large portion of 

 Cumberland, Lancashire, and Westmore- 

 land, attaining an elevation in some places 

 of upwards of three thousand feet, and 

 affording the splendid scenery of North 

 Wales and of the lakes. The strata are 

 of great, but unknown, thickness, possess- 

 ing a slaty character, and nearly destitute 

 of organic remains. The Cumbrian, or, 

 as it has been also called, Grauwacke 

 system, includes the Plynlymmon rocks, 

 the Bala limestone, and the Snowdon 

 rocks. 



CU'MULATE. (from cumulo, Lat.) To 

 heap together. 



CUMULATION. A heap ; the act of heap- 

 ing together. 



CUMULATIVE. (cumulatif, Fr.) Com- 

 posed of parts heaped together. 



CU'NEAL. (cuneus, Lat.) Having the form 

 of a wedge. 



CU'NEIFORM. ) Having the form of a wedge. 



CU'NIFORM. $ Three bones of the foot 

 have obtained the name of cuneiform 

 bones from their wedge-like shape ; they 

 are situated at the fore part of the tarsus 

 and inner side of the os cuboides, and are 

 K 



