DEN 



[ 130] 



D E IT 



DE'NTATUEE. Pertaining to the teeth 

 of an animal, to their structure 

 and character. 



DE'NTED. (dente, Er. decoupe en 

 pointes serrees Us unes contre les 

 autres.) Notched; indented. 



DB'NTICLE. } (denticule, Pr.) A small 



DE'NTICULE. j tooth or projecting 

 point. 



DE'NTILE. A small tooth, as that of 

 a saw : a term used in conchology. 



DENTICULATED. (denticulatus, Lat.) 

 Set with small teeth, as in the 

 area. 



DE'NTOID. (from dens and e?o, Gr.) 

 Of the shape, or form, of a tooth. 



DENITBA'TION. (denudatio, Lat. denu- 

 dation, Pr.) The laying bare ; the 

 act of divesting of its covering; 

 the uncovering of strata by the 

 washing away of their covering ; 

 the stripping off the superstrata. 



DEO'XYDATE. | To reduce from the 



DEO'XYDIZE. ) state of an oxyd by 

 depriving it of its oxygen. 



DEO'XIDIZED. j Deprived of oxygen ; 



DEO'XTDIZED. f disunited, or sepa- 



DEO'XTDATED. ( rated from the oxy- 



DEO'XYDATED. / gen with which it 

 was previously joined. 



DEPO'SIT. Matter laid or thrown 

 down; that which having been 

 suspended or carried along in a 

 medium lighter than itself at 

 length subsides, as mud, gravel, 

 stones, detritus, organic remains, 

 &c. 



DEPEE'SSED. (depressus, Lat.) Pressed 

 down ; low ; shallow ; flat. In 

 botany, leaves are called depressed 

 when flattened vertically : radical 

 leaves are thus called when they 

 are pressed close to the ground. 



DEPEE'SSION. (depressio, Lat. depres- 

 sion, Pr. depressions, It.) The 

 sinking, or falling in, of a surface. 



DEPEE'SSOE. The name given to 

 such muscles as have the power of 

 depressing, as the depressor anguli 

 oris, &c. 



DEPUEA'TION. (depuration, Pr. depu- 

 ramdne, It. depuratio, Lat.) The 



action of freeing from impurities, 

 of cleansing. 



DEEA'CINATE. (deraciner, Pr. tirer de 

 terre, arr etcher de terre un arlre.) 

 To tear up by the roots ; to 

 extirpate. 



DE'EBYSHIEE SPAE. This beautiful 

 substance is fluate of lime, a com- 

 bination of calcareous earth with 

 fluoric acid ; it occurs in nodular 

 masses, and in crystals. It is 

 found in great beauty and abun- 

 dance in Derbyshire, whence it has 

 obtained its nama, but it is also 

 plentiful in other parts of England. 

 It is also called flour-spar and blue- 

 John, which latter see. 



DE'BMAL. (from Sep^a, Gr.) Be- 

 longing to the skin; composed of 

 skin. Thus we read of the dermal 

 fringe of the iguana ; the dermal 

 bones of the hylaaosaurus. 



DE'EMA. ] (Ze Pf ia, Gr.) The true 



DE'EMIS. j skin, as distinguished 

 from the cuticle, epidermis, or 

 scarf-skin. 



DE'EMOID. (from Seppa., and e^o?, 

 Gr.) Belonging to the skin; re- 

 sembling the skin. 



DE'SMINE. A mineral found in the 

 lava of extinct volcanoes accom- 

 panying spinellane ; its form of 

 crystallization is in small silken 

 tufts. 



DETEI'TION. The act of wearing away. 



DETEI'TAL. Composed of detritus; 

 consisting of the disintegrated ma- 

 terials of rocks. 



DETEI'TTJS. (Lat.) The worn off, 

 or rubbed off, materials of rocks. 

 "Beneath the whole series of 

 stratified rocks," says Professor 

 Buckland, " that appear on the 

 surface of the globe, there probably 

 exists a foundation of unstratified 

 crystalline rocks, bearing an ir- 

 regular surface, from the detritus 

 of which the materials of stratified 

 rocks have in great measure been 

 derived." 



DETJTO'XIDE. ) (from e^Te/>os,Gr. and 



DEUTO'XYDE. j oxyd.} Called also 



