69 Ent 



Edentulous. — Destitute of teeth. (From L. e. 

 {ex), and dens, a tooth.) 



Endo. — A Greek prefix extensively used in scientific 

 terms, signifying within (endon). 



Endoblast. — An inner layer formed by the invagin- 

 ated cells of the invagination of the blastoderm. 

 (From Gr. endon, within, and hlastos, a growth 

 or germ.) 



Endoderm, or hypoblast. — The inner embryonic cell 

 layer arising from two cell masses situated at 

 either end of the embryo in the neighbourhood of 

 the fore-gut and the hind-gut. (Gr. endon, and 

 derma, the skin.) 



Endopodite. — The second part of the maxilla. 

 (Gr. endon, within, and pons, from podos, foot.) 

 See Stipes. 



Endoskeletal rods. — Apodemes. (Gr. endon, 

 within, and Eng. skeleton.) 



Endotrachea. — The inner membrane lining the 

 trachea, and which is a continuation of the 

 cuticle of the integument. (Gr. endon and, 

 trachea.) 



Ennaton. — The ninth segment in insects. (Gr. 

 ennea, nine.) 



Ensate. — Gradually tapering till it ends in a point ; 

 sword-like. (L, ensis, a sword.) 



Ensiform. — Sword-shaped. (L. ensis, a sword, and 

 forma, shape.) 



Entire. — Without excision, emargination, or pro- 

 jection. (From O.F. entier, whole, L. integrum, 

 whole, ace. of integer.) 



