GLOSSARY. 57 



GenFo-hy'o-glos'sus (prefix genio- ; hyoides os, the hyoid bone ; 

 Gr. glossa, the tongue). A muscle attached to the chin, 

 hyoid bone, and tongue. 



Genfo-hy'oid (Gr. genus, the maxilla or cheek-bone). A mus- 

 cle passing from the hyoid bone to the symphysis of the 

 mandible. 



Ge'nu (L. knee). The term applied to a bend in the corpus 

 callosuni) and to a similar bend in the optic tract of the 

 brain. 



Gephy'rea (Gr. gephitra, a bridge). A group of marine animals 

 classed with the Annelida. 



Geranomor'phae (Gr. gerdnos, a crane; morphe, form). The 

 Cranes. 



Germ cell (L. germen, a bud). The cell which, after re- 

 ceiving the contents of the " sperm cell," produces the 

 embryo. 



Germa'rium (L. germen, a bud). A structure in which the 

 ova are developed in some of the Turbellaria. 



Gesta'tion (L. gero, I bear or carry). The condition of preg- 

 nancy. 



Gige'rium, The muscular stomach or gizzard of birds. 



Gingf vae (Latin). The gums. 



Gin'glyform (Gr. ginglumos, a hinge). Resembling a hinge ; 

 hinge-like; applied to a joint or articulation. 



Gin'glymus (Gr. ginglumos, a hinge). A hinge-joint which 

 admits of motion only in one plane. 



Glabella (L. gldber, smooth). A term for the small space 

 between the eyebrows, and immediately above a line from 

 one to the other. 



Glabel'lum (L. glaber, smooth). The central raised ridge in 

 the cephalic shield of the Trilobita. 



Gladiolus (L. a little sword). A name sometimes given to the 

 central portion of the sternum. 



Gland (L. glans, an acorn). An organ in an animal or plant 

 which has for its function the secretion of some material, 

 (which in animals is secreted from the blood,) either 

 destined for further use in the economy or for immediate 

 removal from it. 



Glan'dula lachrymalis infe'rior (L. little lower lachrymal 

 gland). A name sometimes given to the fore-part of the 

 lachrymal gland. 



Glan'dula socia paro'tidis (L. little companion gland of the 

 parotid). A process of the parotid salivary gland. 



