46 



GLOSSARY 



Having small teeth, or projections 

 like teeth. 



Den'tifrice (Lat. dens, a tooth ; frico, 

 I rub). A substance used in clean- 

 ing teeth ; tooth-powder. 



Dentig'erous (Lat. dens, a tooth ; gero, 

 I bear). Bearing teeth. 



Den'tine (Lat. dens, a tooth). The 

 part of a tooth commonly known as 

 ivory. 



Dentiros'tres (Lat. dens, a tooth ; 

 rostrum, a beak). A family of birds 

 of the passerine order, having the 

 upper bill notched towards the 

 point. 



Dentition (Lat. den*, a tooth). The 

 process of breeding or cutting teeth. 



Denuda'tion (Lat. de, from ; nudus, 

 bare). A stripping bare. 



Deo'dorise (Lat. de, from; odor, 

 smell). To deprive of smell. 



Deodorisa'tion (Lat. de, from ; odor, 

 smell). A depriving of smell. 



Deox'idate, or Deox'idise, or Deoxyg'- 

 enate (Lat. de, from ; oxidate, 

 to charge with oxygen). To de- 

 prive of oxygen. 



Dephlogis'ticated. Deprived of phlo- 

 giston, the supposed principle of 

 inflammability : a term formerly 

 applied to oxygen gas. 



Depilatory (Lat. de, from ; pttus, 

 hair). Having the property of 

 removing hair. 



Deple'tion (Lat. de, from ; pleo, I 

 fill). Emptying ; diminishing the 

 quantity contained. 



Deposit (Lat. de, down ; pono, I 

 put). Any thing or substance 

 thrown down, as from fluid in 

 which it has been suspended. 



Deprava'tion (Lat. de, down ; pravus, 

 bad). A making, bad or worse. 



Depres'sion (Lat. de, down ; prem'o, 

 I press). A pressing down ; a 

 sinking in or down. 



Depres'sor (Lat. de, down ; prem'o, I 

 press). That which depresses or 

 draws down : applied to certain 

 muscles. 



De'purate (Lat. de, from ; purus, 

 pure). To render free from impurities. 



Depura'tion (Lat. de, from ; purus, 

 pure). Purification ; rendering free 

 from impurities. 



Derby-spar. Fluoride of calcium, or 

 fluorspar. 



Deriva'tion (Lat. de, from ; rivus, a 

 stream). In grammar, the tracing 

 a word to the source from which 

 it has been obtained. 



Derivative (Lat. de, from ; rivus, a 

 stream). Turning aside, or draw- 

 ing away from another part, as 

 applied to medicines ; in grammar, 

 a word which has its origin in 

 another word. 



Derma (Gr. Se^uo, derma, skin). The 

 true skin. 



Der'mal (Gr. Septet, derma, skin). 

 Belonging to or formed of skin. 



Dermatorogy (Gr. 8ep,ua, derma, 

 the skin ; \oyos, logos, discourse). 

 A description of the skin. 



Dermone'ural (Gr. Septet, derma, the 

 skin ; vsvpov, neuron, a nerve). A 

 name given to the outer or upper 

 row of spines on the back of a fish, 

 from their connection with the 

 skin, and their position in respect 

 to the part of the skeleton which 

 protects the nervous system. 



Dermoskereton (Gr. Sep/za, derma, 

 skin ; a KC \erov, sJcel'eton). A skin 

 skeleton ; the external covering, 

 more or less hard, of many inverte- 

 brate animals ; also the skeleton 

 formed of bones connected with the 

 skin in fishes and some other ver- 

 tebrates, 



Desic'cate (Lat. de, from ; siccus, 

 dry). To make dry. 



Desicca'tion (Lat. de, from ; siccus, 

 dry.). The act of making dry. 



Desic'cative (Lat. de, from ; siccus, 

 dry). Drying. 



Desmogfraphy (Gr. 5eo>ios, desmos, 

 a ligament ; ypa^xa, grapho, I 

 write). A description of the liga- 

 ments of the body. 



Desquama'tion (Lat. de, from ; squa- 

 ma, a scale). A throwing off in 

 scales. 



Deter'gent (Lat. de, from ; tergo, I 

 wipe). Cleansing. 



Determinate (Lat. de, from ; ter'-mi- 

 nus, an end). Limited ; in mathe* 

 matics, applied to problems that are 

 capable of only one solution. 



De'tonate (Lat. de, from ; tono, I 



