GUA- 



122 



GYM- 



guard (gard) n. [O.F. garder, to 

 guard.] The rostrum of a Belem- 

 nite (pal.}. 



guard cells, cells surrounding the 

 stomata of the aerial epidermis of 

 plant tissue (dot.}. 



gubernacular (goo'bernak'ular) a. 

 [L. gubemare, to govern.] Pert. 

 the gubernaculum. 



gubernaculum (goo'bernak'ulum) n. 

 [L. gubemare, to govern.] A cord 

 stretching from the epididymis to 

 the wall of the scrotum (anat.) ; 

 strands of blastostylar ectoderm 

 between gonophore and gonotheca 

 in the Hydromedusae ; a posterior 

 flagellum functioning as a rudder 

 (zoo/.). 



guest Insect, an insect living or 

 breeding in the nestof another (zoo/.}. 



gula (gu'la) n. [L. gula, gullet.] 

 The upper part of the throat ; the 

 median ventral piece of an insect's 

 head (zoo/.). 



gular (gu'lar) n. [L. gula, gullet] 

 An anterior unpaired horny shield 

 on the plastron of Chelonia (zoo/.). 



gullet (gul'et) n. [L. gula, gullet.] 

 The oesophagus; a muscular canal 

 extending from mouth cavity to 

 stomach ; the canal between the 

 cell-mouth or cytostome and the 

 endoplasm of Ciliata (zoo/.). 



gum (gum) n. [L.gummi, gum.] An 

 exudation of certain plants and 

 trees ; a vegetable mucilage (hot.). 



gummiferous (gurmf'eYus) a. [L. 

 gummi, gum ; ferre, to carry.] 

 Gum-producing or exuding (dot.). 



gummosis (giimd'sTs) n. [L. gummi, 

 gum.] Condition of plant tissue when 

 cell-walls become gummy (dot.). 



gums (gumz) n. plu. [A.S. goma, 

 jaw.] The thick tissues investing 

 the jaws (anat.). 



gustatory (gus'tatori) a. [L. gustare, 

 to taste.] Pert, sense of taste ; appl. 

 cells, hairs, pores, nerves (anat.). 



gustatory calyculus, a taste bud ; 

 an end-cell or end-organ of taste 

 consisting of a group of gustatory 

 cells (anat.). 



gut (gut) n. [A.S. gut, a channel.] 

 The intestine or part thereof, 

 according to the structure of the 

 animal (zoo/.). 



gutta (gut'a) n. [L. gutta, drop.] 



A small spot of colour on an 

 insect's wing or elsewhere (zoo/.). 



guttation (guta'shun) n. [L. gutta, 

 drop.] Formation of drops of 

 water on plants from moisture in 

 the air (dot.). 



guttiform (gut'iform) a. [L. gutta, 

 drop ; forma, shape.] Drop-like ; 

 in the form of a drop (zoo/.). 



guttulate (gut'ulat) a. [L. guttula, 

 small drop.] In the form of a 

 small drop, as markings (zoo/.). 



gymnanthous (jimnan'thus) a. [Gk. 

 gymnos, uncovered; anthos, flower.] 

 With no floral envelope; achlamyd- 

 eous (dot.). 



gymnetrous (jimne'trus) a. [Gk. 

 gymnos, naked ; etron, abdomen.] 

 Without an anal fin (zoo/.). 



gymnoarian (jimnoa'rian) a. [Gk. 

 gymnos, naked.] Appl. gonads 

 when naked, or not enclosed in 

 coelomic sacs ; opp. cystoarian 

 (zoo/.). 



gymnoblastic (jlm'noblas'tik) a. [Gk. 

 gymnos, naked ; blastos, bud.] With- 

 out hydrothecae and gonothecae ; 

 appl. certain of the Coelenterates 

 (zoo/.). 



gymnocarpous (jim'nokar'pus) a. 

 [Gk. gymnos, uncovered ; karfios, 

 fruit.] With naked fruit ; appl. 

 Lichens with uncovered apothecia, 

 Mosses with expanded hymenium 

 (dot.). 



gynmocidlum (jTm'nosid'ium) n. 

 [Gk. gymnos, uncovered.] A basal 

 swelling of certain moss capsules 

 (dot.). 



gymnocyte(jTm'nosit). [Gk. gymnos, 

 uncovered ; kytps, hollow.] A cell 

 without a defining cell-wall (diol.). 



gymnocytode ( jim'nti sl'tod), a cytode 

 without cell-wall or nucleus a term 

 used by Haeckel (diol.). 



gymnogenous (j!mnqj'6nus) a. [Gk. 

 gymnos, naked ; genos, offspring.] 

 'Naked when bo'rn ; appl. birds 

 (zoo/.). 



gymnogynous (jimnqj'inus) a. [Gk. 

 gymnos, naked ; gyne, woman.] 

 With exposed ovary (dot.). 



gymnoplast (jim'noplast) n. [Gk. 

 gymnos, naked ; plastos, formed.] 

 Protoplasm without definite forma- 

 tion or cell-wall (diol.). 



gymnorhlnal (jTm'nori'nal) a. [Gk. 



