GUMMA 



285 



GYRUS 





Suakim, that yielded by Acacia stenocarpa, Hochst. 

 G., Succory, the milky juice of Chondrilla juncea, L. 

 It is used in menstrual disorders. G., Talba, G., 

 Talca, G., Talea, G., Talha, G., Talka. See G., 

 Suakim. G.-tuno. See Balata (Illus. Diet.). G., 

 Universal, a patented product derived from potato 

 starch. G., Wasting of. See Ulatrophia (Illus. 

 Diet.). G.s, Wattle, in Australia the name for all 

 true gums obtained from the different species of Aca- 

 cia. G.-zaharbad, in India a vernacular name for 

 trypanosomiasis. 



Gumma. (See Illus. Diet.) G. gallicum, G., Syphil- 

 itic, G. syphiliticum, syphiloma. 



Gummate {gum' -at). A salt of gummic acid. 



Gummide \gum'-id). Any compound which yields 

 glucose on decomposition with acids or alkalis. 



Gummosis. (See Illus. Diet.) 2. A contagious dis- 

 ease of fruit trees marked by cracks in the barks, in 

 which gummy exudates form. It is also applied to a 

 disease of sugar beets described by Sorauer, thought to 

 be due to Bacillus beta. 



Gummy ( gum'-e). I. Gummatous. 2. Resembling gum. 



Gunjah ( gun'-jah ). The officinal part of the Indian 

 hemp consisting of the dried flowering- tops of the female 

 plant, from which the resin has not been removed. 



Gunther's Method. See under Stains. 



Gut. (See Illus. Diet.) G., Blind, the cecum. G., 

 Bum, the rectum. G., Fore-, the prosogaster. See 

 Foregut (Illus. Diet.). G., Hind-, G., Hinder. 

 See Hindgut (Illus. Diet.). G. -larva, gastrula. G., 

 Mid-. See Mesogaster (Illus. Diet. ). G., Postanal, 

 G., Subcaudal, G., Tail, the prolongation of the 

 embryonic alimentary canal into the tail for some dis- 

 tance beyond the anus ; it atrophies early and is more 

 pronounced in the lower vertebrates. G.-tie, volvulus. 



Gutta. (See Illus. Diet.) 3. C^H,, or C 5 H g (Oude- 

 mans). The essential element of gutta-percha; it 

 melts at 130 C. Cf. Aldan, Fluavil. G. cadens, 

 Laennec's term for the cause of metallic tinkling; he 

 believed the sound to be produced by the dropping of 

 liquid from the upper into the lower part of the pleural 

 space when it contains air as well as pus. 



Guttan (gut'-an). One of the constituents of gutta- 

 percha. 



Guttiferous {gut-if'-ur-us) [gutta, a drop ; ferre, to 

 bear]. Gummiferous ; yielding gum. 



Guttiform (gut'-e-form) [gutta, a drop; forma, form]. 

 Drop- shaped. 



Gymnasiarch [jim-na f -si-ark) [yv/ivaaiapxi^ • The 

 hief physician or director of the gymnasium of ancient 

 Greece ; a high degree of skill was a requisite ; one of 

 the most celebrated was Herodicus. 



Gymnast (jiw'-nast) [} vuvaarijc ] . A subordinate 

 physician or subdirector of the gymnasium of ancient 

 "reece. He directed the pharmaceutic treatment of 

 e sick. Cf. Iatroliptes ; Gymnasiarch. 



Gymnastics. (See Illus. Diet.) G., Antagonistic, 

 G., Resistance-, physical exercise engaged in by two 

 persons, the one resisting the other, as that adopted in 

 the Schott treatment for cardiac affections. 



Gymnobacteria {jim-no-bak-te'-re-ah) [jvuvoc, naked; 

 Bacterium]. Nonflagellate bacteria. 



Gymnoblast {jim' -no-blast). See Gymocyta (Illus. 

 Diet.). 



Gymnoplast {jim'-no-plast) [}vuvoc, naked; ~'t \aactiv, 

 to form]. A protoplasmic body without a limiting 

 membrane. 



Gynanthropus {jiu-an'-thro-pus) [jrny, a woman; 

 ai-Opurror, a man]. A hermaphrodite with predomi- 

 nant male characteristics. 



Gynecophonus, Gynaecophonus {jin-e-kof -on-us) 

 [;. fi7/, a woman; ooiog, murder]. I. Destructive to 

 women. 2. [;m/, woman; ouiv/, the voice.] Hav- 

 ing a voice like a woman. 3. A man with an effemi- 

 nate voice. 



Gynocardate (Jin-o-kar'-ddt). A salt of gynocardic 

 acid. 



Gynocardia (jin-o-kar'-de-ah) [;iriy, a woman; Kup- 

 6a, heart]. A genus of trees of the order Bixiiitc. 

 G. odorata, R. Br., a species indigenous to India, 

 yields chaulmoogra oil. 



Gynocyanauridzarin ( Jin - o - si- an -ah- rid'- za - rin). 

 (C 9 H 21 7 V,KCNOAu 3 . Unstable, greenish-yellow 

 needles, soluble in cinnamic acid and slightly in oils- 

 It is used in leprosy, tertiary syphilis, tuberculosis, 

 psoriasis, etc. Dose, ufa p- glt gr. (0.03-0.2 mg. ) 

 3 times daily. 



Gyroma {ji-ro'-mah) [gyrus, a circle; pi., gyromas r 

 gyromata\ A variety of myoma of the ovary in which 

 the fibrous tissue presents a wavy appearance; it is 

 ascribed to degenerative changes in the fibrous tissue 

 surrounding old contracting corpora lutea. 



Gyromele ( ji f -rom-il) [}i'poc, a circle; fii'/.ij, a kind 

 of cup]. Of Tiirck, a stomach-tube or probe with a 

 rotating center, which can be fitted with various attach- 

 ments and used in estimating the size of the stomach, 

 cleansing, massage of the walls, securing cultures, etc. 



Gyrus. (See Illus. Diet.) G., Cerebellar. See Folium 

 (2) (Illus. Diet.). G. cinguli, the fornicate gyrus. 

 G., Ecker's. See Convolution, Descending (Illus. 

 Diet.). G. limbicus, a tract of fibers which arises 

 from that part of the marginal gyrus that is not inrolled 

 to form the horn of Amnion. G., Presylvian, the 

 transverse occipital gyrus ventrad of the fissure of Syl- 

 vius. Gyri, Primary, embryonic cerebral areas 

 bounded by primary fissures. Gyri, Primitive, a 

 succession of cerebral convolutions distinctly defined in 

 the Carnivora, arranged concentrically around the fis- 

 sure of Sylvius. Vestiges of these may be seen in the 

 callosal, frontal, and temporal gyri of the human brain. 

 G. profundus. See I'adum (Illus. Diet.). G., 

 Transitive. See Gyral Isth mus (Illus. Diet.). 



