GRAMNEGATIVE 



282 



GROOVE 



active chemical expressed in grams. Syn., Grammole ; 

 Mole; Mol. 



Gramnegative (gram-neg' '-at-iv). Incapable of stain- 

 ing by Gram's method. 



Grampositive { gram-pos' -it-iv). Capable of staining 

 by Gram's method. 



Granatonin (gran-at'-on-in) [granatum, the pome- 

 granate]. Pseudopelletierin. 



Grandiflorin [gran-de-flor'-in). An energetic poison- 

 ous alkaloid obtained from the fruit of Solatium gran- 

 dijlorum, var. pulverulentum, Leutn. , of Brazil. 



Grando (gran'-do) [L., a hailstone; pi., grandines\. 

 See Chalaza and Chalazion (Illus. Diet.). In the 

 plural, large tubercles. 



Granula {gran' -it- la h) [granum, a grain]. Altman's 

 term for the granules or cytoblasts of protoplasm ; the 

 microsome of Hanstein. 



Granulase ( gran' -u-laz) \_granum, grain]. An enzyme 

 found in cereals converting starch into achroodextrin 

 and maltose. 



Granulatio, Granulation. (See Illus. Diet.) G.s, 

 Bayle's, miliary tubercles. G.s, Bright's, the gran- 

 ulations of granular nephritis. G.s, Cerebral, pac- 

 chionian bodies. G.s, Erethistic, G.s, Erethitic, 

 an acestoma in which severe pain and hemorrhage are 

 caused by slight irritation. G., Exuberant, G., 

 Fungous, an acestoma secreting thin mucopurulent 

 matter due to local edema or to excessive formative 

 power. G.s, Fibroid. See Milk-spots (Illus. Diet.). 

 G.s, Gray, miliary tubercles. G.s, Virchow's, granu- 

 lations consisting principally of endymal cells and neu- 

 roglia fibers, commonly found in the walls of the ven- 

 tricles of the brain in progressive general paralysis. 



Granule. (See Illus. Diet.) G.s, Alpha, G.s, Beta, 

 G.s, Delta, G.s, Epsilon, G.s, Gamma. See under 

 Color-analysis. G.s, Altmann's, round bodies stain- 

 ing readily with carbolfuchsin, and regarded as cell- 

 derivatives which have grown through the assimilation 

 of fat. They are probably allied to Russell's bodies. 

 G.s, Bettelheim's. See Hetnokonia. G.s, Chro- 

 mophil. See Bodies, A r issl's. G.s, Claude Ber- 

 nard's, the granules in the secreting cells of the pan- 

 creas. G.s, Edematin, the microsomes forming the 

 mass of the nuclear sap. They have been identified 

 with the "cyanophilous granules" of the nucleus. 

 G.s, Interstitial, occur in the sarcoplasm of striated 

 muscle-fibers; they consist of fat and probably also of 

 lecithin. G.s, Leukocyte-, the amphophil, baso- 

 phil, eosinophil, neutrophil, or oxyphil bodies observed 

 in leukocytes. Cf. Color-analysis: Bioblast. G.s, 

 Lymph, lymph-corpuscles. G.s, Malpighi's, mal- 

 pighian corpuscles. G.s, Neusser's, basophilic gran- 

 ules sometimes found in the leukocytes of the blood, 

 near the nuclei. They are regarded by Neusser as 

 being closely connected with the uric acid diathesis, 

 but their presence has been noted also in other condi- 

 tions. G.s, Nissl's. See Bodies, NissTs. G.s, 

 Osseous, very small granules of inorganic matter 

 which are found in the matrix of bone. G.s.Schultze's. 

 See under Schultze( Illus. Diet.). G.s, Vitelline, G.s, 

 Yolk. See Spheres, Vitelline (Illus. Diet.). G.s, 

 Zimmermann's. Synonym of Bizzozerd 1 s Blood- 

 plates. G.s, Zymogen, G.s, Zymogenous, certain 

 granules in the pancreatic cells supposed to give origin 

 to the pancreatic ferments. 



Granulia. (See Illus. Diet.) G., Pharyngolaryn- 

 geal (of Isambert). See Disease, Lambert's. 



Granuliform [gran-u'-le-form) [granulum, a little 

 grain; forma, form]. Resembling small grains. 



Granulobacillus (gran-u-lo-bas-il'-i/s). See under 

 Bacteria, Synonymatic Table of (Illus. Diet.). 



Granulofatty (gran-u-lo-fat'-e). Applied to cells in 



tissue undergoing fatty degeneration, which contain 

 granules of fat. Syn., Granuloadipose. 



Granuloma. (See Illus. Diet.) G. annulare, H. R. 

 Crocker's name for a peculiar disease midway between 

 an inflammation and a neoplasm, characterized by the 

 formation of pale-red or violaceous red nodules on the 

 wrists, backs of the hands, and neck, which develop 

 slowly and form circles by confluence. The lesions 

 are firm; the mucous layer enormously thickened. G. 

 trichophyticum, granuloma due to Trichophyton. G. 

 tropicum, frambesia. 



Granuloplasm (gran'-u-lo-plasm) [granulum, a small 

 grain; plasma, something formed]. The granular 

 protoplasmic mass in the inner part of a cell. 



Grape-fruit. The fruit of Citrus decumana, L., a 

 tree of the East Indies, but cultivated in Asia Minor, 

 Europe, and America. Syn., Pomelo ; Popelmus. 



Graphic [graf'-ik) [ypa<j>eiv, to write]. Relating to 

 writing or recording, or to the process of making auto- 

 matic tracings of phenomena, showing degree, rhythm, 

 etc. 



Graphomotor (grafo-mo'-lor) [ypdyeiv, to write; 

 movere, to move]. Relating to graphic movements. 



Graphorrhea (grafor-e'-ah) [ypatyetv, to write; pioc t 

 anvthing flowing]. A flow of written words; an inter- 

 mittent condition in certain forms of insanity marked 

 by an uncontrollable desire to cover pages with usually 

 unconnected and meaningless words. 



Graphoscope [graf'-o-shop) [ypa&eiv, to write; cko- 

 ~eiv, to view]. A convex lens devised for the treat- 

 ment of asthenopia and progressive myopia. 



Gratiosolin (gra-ti-os'-ol-in). C 4fi H 8+ 25 (?). A glu- 

 cosid isolated from Gratiola officinalis, occurring as a 

 reddish-yellow mass, which splits by action of dilute 

 acids or alkalis into sugar and gratiosoletin (C 40 U. U - 

 ]7 ). Drastic properties are attributed to it. 



Gravative [grav'-ah-tiv) [gravis, heavy]. Attended 

 by a sense of weight; said of the pressure-pains of 

 tumors. 



Grave. (See Illus. Diet.) 2. Serious, severe, dangerous. 



Gravidocardiac (grav-id-o-kar'-dc-ak) [gravid; car- 

 diac] . Relating to cardiac disorders due to pregnancy. 



Gravimetric (grav-im-et'-rih). Determined by weight. 

 G. Analysis. See Analysis. 



Gravistatic {grav-is-tat'-ik) [gravis, heavy ; arnrinij, 

 the art of weighing]. Due to gravitation ; applied to 

 a form of congestion. 



Green. (See Illus. Diet.) G. -stain, fungoid deposits 

 upon the enamel surfaces of the teeth, generally at their 

 cervicolabial portions. 



Greenheartin (gre/t-hart'-in). C S0 H., 6 O 6 . A yellow 

 coloring-matter isolated by de Urij from Nectandra 

 rodiicsi. Hook, the greenheart tree of Dutch Guiana. 



Grehant's Method for determining urea in blood and 

 tissues. It makes use of a solution of mercury, I gm. 

 in 10 c.c. of pure nitric acid, for decomposing the urea ; 

 the CO, and N are liberated, enabling one to estimate 

 the urea. 



Gripe. (See Illus. Diet. ) G., Cutting on the. 

 under Cystotomy. G.s, Dry. See Colic, Metallic. 

 G. -Stick, a tourniquet. G.s, Watery, cholera in- 

 fantum. 



Grippotoxin ( grip-o-lois'-in). A name for the toxin 

 elaborated by Bacillus in/!uc>i:,c. 



Groin. (See Illus. Diet.) ' G., Green. See Appendix, 

 Gangrenous. 



Groove. (See Illus. Diet.) G., Alveolingual, one 

 between the tongue and the lower jaw. G., Anal, a 

 depression in the embryo indicating the anus. G., 

 Anterolateral. See Fissure, Anterior Lateral (Illus. 

 Diet.). G., Basilar (of the occipital bone), one on 

 the internal aspect of the basilar process sloping up- 



