METASYPHILIS 



360 



METHYL 



Metasyphilis (met-ah-sif'-il-is) \_uera, beyond ; syph- 

 ilis]. Inherited syphilis without local lesions but with 

 a general degeneration. 



Metatarsometatarsal (met-ah-tar-so-met-ah-tar / -sal). 

 Relating to the metatarsal bones in their position in 

 regard to each other. 



Metatartrate (met-ah-tar' '-(rat). A salt of metatartaric 

 acid. 



Metathalamus (met-ali-thal'-am-us) \_jierd, beyond; 

 thalamus]. The boundary region between the mesen- 

 cephalon and the thalamencephalon. 



Metatroph (mef-at-rof) [itera, beyond; r/jo^/), nourish- 

 ment]. See Saphrophyte (Illus. Diet.). 



Metatrophic (met-a-tro'-fik). Applied by A. Fischer 

 to saprophytic organisms which cannot exist in the 

 presence of living tissues. Cf. Paratrophic ; Proto- 

 trophic. M. Method, a therapeutic method of modi- 

 fying the nutrition by changes in the food — with a view 

 of administering some drug; e. g., suppression of so- 

 dium chlorid in food of epileptics in order to reinforce 

 the action of bromids. 



Metatrophism (met-at'-ro-fizni) \_uf~a, beyond ; rpofi], 

 nourishment]. Osborn's term for that compensating 

 readjustment, whereby the sum of nutrition to any re- 

 gion remains the same during redistribution of its parts, 

 as exhibited in the simultaneous development and de- 

 generation of organs which lie side by side, as the 

 muscles of the foot or hand; in the hypertrophy of 

 adaptive organs and atrophy of inadaptive or useless 

 organs. 



Metatungstate (met-ali-twig'-stat). A salt of meta- 

 tungstic acid. 



Metaurate (met '-aw- rat). A salt of metauric acid. 



Metavanadate (met-ah-van' -ad-dt). A salt of meta- 

 vanadic acid. 



Metazonal (met-ah-zo f -nal) [nira, beyond; zona, zone]. 

 Applied by Fiirbringer to a nerve-trunk lying below a 

 sclerozone. 



Metchnikoff's Larva. See Larva. M.'s Theory of 

 Phagocytosis. See Phagocytosis (Illus. Diet.). 



Metecism, Metcecism (met'-es-izm). See Heterecism. 



Metempiric (met-ew-pir'-ik) \_uera, beyond; iu^sipia, 

 experience]. Opposed to empiric; not based on ex- 

 perience. 



Meteorism. (See Illus. Diet.) M., Myogenic, that 

 caused by atony of the abdominal wall. M., Para- 

 lytic, due to paralysis of the intestinal musculature. 

 M., Peritoneal. See Pneumoperitonitis (Illus. Diet.). 



Meteorograph (me-te-or' -o-graf ) [^frwooc, in air; 

 yp&petv, to write]. An apparatus devised by Charles 

 F. Marvin for securing a continuous record of the 

 pressure, temperature, humidity, and velocity of the 

 wind. 



Metepiplexus (met-ep-e-pleks'-us) [fiera, beyond; ett'i, 

 upon ; plectere, to knit]. Stroud's name for the middle 

 portion of the extensive plexus developed from the 

 metatela in the cerebellum of the ape. 



Meter. (See Illus. Diet.) M. -candle (Weber), a 

 standard measure of illumination, the luminosity of a 

 piece of paper at one meter from a standard candle. 

 M.-lens. See Dioptry ( Illus. Diet.). 



Metestrous (mel-es / -trus). Pertaining to the period in 

 which the activity of the generative organs is gradually 

 subsiding in female animals. 



Metestrum, Metcestrum [uera, after; alorpoc;, a gad- 

 fly]. Heape's term for the period of subsidence of 

 sexual activity in animals. Cf. Anestrnm, P'.strum 

 (Illus. Diet.), Diestrum, Mones/rnm, Proatrwa. 



Methemerine (meth-em'-er-ln) [/itni, among; t/fdpa, 

 a day]. Quotidian. 



Methenyl (m,th f -en-il ). CH. A hypothetic trivalcnt 

 radicle. M.orthoanisidin, a compound of orthoan- 



isidin and orthoformic acid ester ; it is a local anes- 

 thetic. M.Tribromid, bromofoim. M. Trichlorid, 

 chloroform. M. Triiodid, iodoform. 



Methethyl (meth-eth'-il). A local anesthetic said to 

 consist chiefly of ethyl chlorid with a small quantity 

 of methyl chlorid and chloroform. 



Methetic (meth-et'-ik) [//ttfef/c, participation]. In 

 psychology applied to communications between the 

 different strata of a man's intelligence. 



Methonal (meth'-on-al). (CH :j ) 2 C(S0 2 CH 3 ) 2 . A 

 hypnotic differing from sulfonal in containing methyl 

 mercaptan instead of ethyl mercaptan. Dose, 15-30 

 gr. (1-2 gm. ). Syn., Dimethyl sulfone-dimethyl- 

 methane. 



M ethoxy antipyrin ( meth - oks - e-an-te -pi' - rin ) . See 

 A ntipyrin metaoxj -benzoate. 



Methoxycaffein (meih-oks-e-kaf'-e-in). C 9 H 12 N 4 3 . 

 A white powder melting at 117° C. It is used 

 hypodermically as a local anesthetic and in neuralgia. 

 Dose, 4 gr. (0.26 gm.). 



Methoxysalicylate (wtth-oks-e-sal'-is-il-dt). Sodium 

 guaiacol carbonate. 



Methozan, Methozin (meth'-o-zan, -zin). See Attti- 

 pyrin (Illus. Diet.). 



Methyl. (See Illus. Diet.) Syn., Prolyl. Mt- 

 acetanilid, exalgin. M. Acetate, C :1 H 6 2 , a fragrant 

 liquid obtained from crude wood-vinegar, boils at 55 ° 

 C. M.-acetoacetate, a salt of methylacetoacetic 

 acid. M. -acetyl, acetone. M. -acetylene, allylene. 

 M.-allylphenol, anethol. M.amidophenol. See 

 Anisidin. M.-aurin. See Eupitton (Illus. Diet.). 

 M. benzol, toluene. M. Bichlorid (so called). See 

 Methylene chlorid of Richardson. M. Blue. (See 

 Illus. Diet.) NaCgjH^NjSjOj,; it is recommended as 

 a topical application in diphtheria in a mixture of 2 

 parts methyl-blue and 98 parts of sugar. M. Bromid, 

 CH 3 Br, colorless liquid with burning taste ; boils at 

 I02°C. Syn., Bromomethane. M.butyl, pentane. 

 M.cacodyl. See Dicacodyl. M. catechol, guaiacol. 

 M. Chloroform, CH 3 CC1 3 , a volatile liquid, boiling at 

 74° C, obtained by chlorinating ethyl chlorid ; sp. gr. 

 1.346 at o° C. It is anesthetic. Syn., Tritklor- 

 ethane ; Dichlorcthyl chlorid: Monochlortthylidtm 

 dichlorid. M.-cocain, C, 8 H. i3 N0 4 , an alkaloid simi- 

 lar to cocain but with feebler action derived from coca. 

 Syn., Coca i nidi 11. M. Cyanid. See Acetonitril. 

 M. Furfurane, C 4 H s (CH 3 )0, boils at 63 C. and is 

 probably identical with sylvan found in pine-tar 

 oil. M. Gallate. See Gailicin. M.-glycocin, M.- 

 glycocoll, M.-glycosin, sarcosin. M.-glycolic- 

 acid-pheneiedin. See Kryofin. M.glycolylguani- 

 din. See Creatinin (Illus. Diet.). M.glyoxal. 

 See Aldehyd, Pyroracetnic. M.glyoxalidin. See 

 Lysidin. M.-hexane. See Heptane (Illus. Diet.). 

 M.hexylketon. See Aldehyd. Caprvlic M. 

 Hydrate, methyl alcohol. M. Iodid, CH 8 I, a re- 

 action-product of methyl alcohol with iodin and phos- 

 phorus; a transparent liquid, soluble in alcohol, boils 

 42.8 C.; sp. gr. 2.325 at O C; used as a vesicant 

 instead of cantharides. Syn., Iodometham. M.ketol. 

 See Acetylcarbinol. M.ketotrioxybenzol. See Gal* 

 lacetophenone (Illus. Diet.). M.-loretin, CH,I. Oil.- 

 C 9 H 3 N. SOjII. U.p, paraniethvlmetaiodo-ortho-oxy 

 quinolinanasulfonic acid, intensely yellow needles 0* 

 scales, slightly soluble in alcohol or water. An anti- 

 septic used as loretin. M.-normal-propylphenol, 

 thymol. M.-oleosalicylate. Setfietulol. M.-para- 

 amidometaoxybenzoate. See Orthoform. M.- 

 parapropenylphenol. See Anethol (Illus. Diet.). 

 M.-pelletierin, C,,H 17 N(), an alkaloid found by lau- 

 rel in root bark of pomegranate, Puuica granatutn, 

 L.; a clear oily liquid soluble in chloroform, boils at 



