GEM- 



114 



GEN- 



a bud ; appl. pedicellariae of Echino- 

 derms (zool.). 



gemmiparous (jemip'arus) a. [L. 

 gemma, bud ; parere, to produce.] 

 Gemmiferous. 



gemmulation (jem'ula'shun) n. [L. 

 gemma, bud.] Gemmule-formation. 



gemmule (je'm'ul) n. [L. gemmula, 

 little bud.] A pangen (cyt.) ; one 

 of the internal buds of Porifera 

 arising asexually and coming into 

 activity on the death of the parent 

 organism (zool.). 



gena (je'na) n., genae (je'ne) plu. 

 [L. gena, the cheek.] The cheek or 

 side part of the head ; the antero- 

 lateral part of an insect's head 

 (zool.). 



genal (je'nal) a. [L. gena, cheek.] 

 Pert, the cheek ; appl. the facial 

 suture of Trilobites and the angle 

 of the cheek (zool.). 



geneology (je'neol'qji) n. [Gk. gene, 

 descent ; logos, discourse.] The 

 study of the development of indi- 

 vidual and race ; Embryology and 

 Palaeontology combined. 



genera (jSn'era), see genus. 



generalized (jen'erallz'd) a. [L. gen- 

 eralis, of one, kind.] Combining 

 characteristics of two or more 

 groups, as in many fossils (pal.). 



generation (jen'era'shun) n. [L.gener- 

 atio, reproduction.] Production ; 

 formation ; the individuals of a 

 species equally remote from a 

 common ancestor, see alternation 

 of generations. 



generative (jen'era'tiv) a. [L. genus, 

 race.] Concerned in reproduction ; 

 appl. the smaller of two cells into 

 which a pollen grain primarily 

 divides (bot.\ 



generic (jneYik) a. [L. genus, race.] 

 Common to all species of a genus, 

 see binomial nomenclature. 



genesis (jen'esis) n. [Gk. gignesthai, 

 to produce.] Formation, produc- 

 tion, or development of a cell, 

 organ, individual, or species. 



genetic (jgnet'ik) a. [Gk. gignesthai, 

 to produce.] Pert, production. 



genetic spiral, in spiral phyllotaxis, 

 the imaginary spiral line following 

 the points of insertion of successive 

 leaves (dot.). 



genetics ( j enet'iks) n. [Gk. gignesthai, 



to produce.] That part of Biology 

 dealing with heredity and varia- 

 tion. 



genial (jen'ial, jeni'al) a. [Gk. geneion, 

 the chin.] Pert, the chin ; appl. 

 chin-plates of Reptiles (zool.). 



genicular (jenTk'ular) a. [L. genicu- 

 lum, little knee.] Pert, region 

 of the knee ; appl. arteries, etc., also 

 to ganglion of facial nerve (anat.). 



geniculate (jenik'ulat) a. [L. genicu- 

 lum, little knee.] Bent like a knee- 

 joint ; appl. a ganglion of the facial 

 nerve (zool.) ; having the upper 

 part of the filament forming an 

 angle more or less obtuse with the 

 lower (bot.). 



geniculum (jenik'ulum) n. [L. gen- 

 iculum, little knee.] The part of 

 the facial nerve in the temporal 

 bone where it turns abruptly towards 

 the stylo-mastoid foramen (anat.). 



genioglossal (jenl'oglos'al) a. [Gk. 

 geneion, chin ; glossa, tongue.] Con- 

 necting the chin and tongue ; appl. 

 muscles (anat.). 



geniohyoid (jem'ohl'oid) a. [Gk. 

 geneion, chin ; hyoeides, Y-shaped.] 

 Pert, chin and hyoid ; appl. muscles 

 (anat.). 



genital (jen'ital) a. [L. gignere, to 

 beget.] Pert, the region of the 

 reproductive organs ; appl. cor- 

 puscles, glands, ridge, tubercle, etc. 

 (anat.). 



genitals (jen'italz) n.plu. [L. gignere, 

 to beget.] The organs of reproduc- 

 tion, especially the external organs 

 (anat.). 



genitoanal (jen'itoa'nal) a. [L. gignere, 

 to beget ; anus, the vent.] In the 

 region of the genitals and anus 

 (anat.). 



genitocrural (jen'itokroo'ral) a. [L. 

 gignere, to beget ; crus, leg.] In 

 the region of the genitals and thigh ; 

 appl. a nerve (anat.). 



genitoenteric (jen'itoenter'ik) a. [L. 

 gignere, to beget ; Gk. enteron, gut.] 

 Pert, genitals and intestine (anat.). 



genitofemoral (jen'itofem'oral) a. [L. 

 gignere, to beget ; femur, thigh- 

 bone.] Genitocrural. 



genoblast (jen'dblast) n. [Gk. genos, 

 offspring ; blastos, bud.] A mature 

 germ-cell exclusively male or female 

 (cyt.). 



