METHYLAL 



758 



METRATOME 



to which toxic doses give rise are dyspnea, muscle- 

 tremor, and general clonic convulsions. See Ptomains, 

 Table of . M.-heptose. See Carbohydrates, Table of . 

 M.-hexose. See Carbohydrates, Table of. M.-hy- 

 dantoin, M.-hydrantoin, a crystalline substance, 

 obtained by fusing together sarcosin and urea, or by 

 decomposing kreatinin. It melts at 145 C. M.- 

 hydrid, marsh-gas. M.-indol. See Skatol. M.- 

 orange. See Pigments, Conspectus of. M. -phenyl 

 Ether. See Anisol. M. -phenyl-ketone. Same as 

 Hypnone. M. Salicylate, C 8 H g 3 ; an oily liquid 

 of a peculiar odor, constituting 90 per cent, of the oil 

 of wintergreen ; it has been used in rheumatism in- 

 stead of the alkaline salicylates. M. -spirit. See 

 M.-alcohol. M.-uramin. See M.-guanidin. M.- 

 violet, an anilin dye used for staining bacteria. 

 Under the name of Pyoktanin Stilling recommends it 

 very highly as an effective bactericide. Dose gr. j-v. 

 Unof. See Pigments, Conspectus of. 



Methylal (meth'-il-al) [fiera, with; vlrj, matter; alco- 

 hol], C 3 H 8 O r A substance prepared by distilling 

 methyl-alcohol with sulphuric acid. It is hypnotic 

 and antispasmodic. Dose jj. Unof. 



Methylamin (meth-il' -am-in) [//era, with ; vItj, matter ; 

 amiti\. A colorless gas having the composition 

 N(CH 3 1H 2 , easily condensing to a colorless liquid. It 

 is used mainly as a reagent in certain organic tests. 

 It occurs also as a ptomain in certain putrefactions, 

 notably that of fish. It is also found in herring-brine, 

 to which it gives odor. 



Methylate (meth' -il-at) [uera, with; vXt}, matter]. 

 Methyl-alcohol in which a metal substitutes the 

 hydrogen of the hydroxyl. 



Methylated (tneth' '-il-a-ted) [fiera, with; vkr], matter]. 

 Containing methyl-alcohol. M. Spirits, methyl-alco- 

 hol, wood-alcohol. The strongest methylated spirit 

 free from mineral naphtha, can be used in place of 

 90 per cent, alcohol for hardening and preserving 

 purposes. 



Methylation (meth-il-a' '-shun) [fierd, with ; £>/,?/, mat- 

 ter]. The process of mixing a substance with methyl- 

 alcohol. 



Methylene (tneth 1 '-il-en) \_fiErd, with ; v'atj, matter] , 

 CH 2 . A bivalent hydrocarbon radicle that does not 

 exist free, but occurs in many compounds. See Anes- 

 thetic. M.-blue, C 16 H 18 N 3 SC1; a coal-tar dye pre- 

 pared from dimethylanilin ; it is much used in the 

 arts and as a stain in bacteriology. Its 10 per cent, 

 solution is recommended as a local application in 

 diphtheria, tonsillitis, scarlatinal sore-throat, and 

 other inflammatory conditions, and internally admin- 

 istered it has proved serviceable as an antiperiodic 

 and antalgic. Dose gr. jss in capsule. Unof. 

 M. Dichlorid, CH. 2 C1 2 ; a general anesthetic, 

 frequently used instead of chloroform. It is as- 

 serted by Genther and Eichholz to be more suscep- 

 tible of management than the latter in protracted oper- 

 ations. Much of the methylene dichlorid contains 50- 

 75 per cent, of chloroform. Unof. See Anesthetic. 



Methylic (meth-W -ik) \jxtra, with; vlrj, matter]. Con- 

 taining methyl. Pertaining to methyl. 



Methylized [tneth' '-il-lzd). Synonym of Methylated. 



Methysis (meth' -is-is) [fieBvatg, from fiedveiv, to be 

 intoxicated]. Intoxication. 



Methyskomania (tneth-is- ko-ma' '-ne-ah) [uedvoneiv, to 

 make drunk ; fiavia, madness] . Same as Metho- 

 mania ; dipsomania. 



Methystic (melh-tV-tic) [fisdvoTiicdr, from fiedueiv, to be 

 intoxicated]. I. Intoxicant. 2. An intoxicating 

 agent. 



Methysticin (meth-is' '-tis-in) [/leOvaTtuSg, intoxicating]. 

 A crystalline principle obtained from Kava-kava, 



closely allied to piperin. It is a neutral, tasteless sub- 

 stance, sparingly soluble in cold, but more freely in 

 hot water, easily soluble in alcohol and ether. It is 

 also called Kavahin. 



Metis (mantes) [Fr.]. A half-breed of French and 

 Indian parentage. See Mulatto. 



Metoarion (met-o-a f -re-on) \_fierd, after; udpiov, the 

 ovule]. The corpus luteum. 



Metodontiasis (met-o-don-W -as-is) \jitra, after; bihv- 

 tlciv, to cut teeth]. The second dentition ; also, abnor- 

 mality of teething. 



Metcecesis (met-es-e / -sis) [yzerri, beyond; olnr/aic;, the 

 act of dwelling] . Transposition ; displacement. 



Metopagus (wet-op' '-ag-us) [/ietuttov, front ; rrdywc, 

 joined] . An ensomphalic twin monstrosity with united 

 foreheads. 



Metopantralgia (met-o-pan-tral' -je-ah) [[ietutvov, fore- 

 head ; avrpov, cave ; a'Ayog, pain] . Pain or neural- 

 gia of the frontal sinus. 



Metopantritis (met-o-pan-tri' '-tis) [[ietutcov, forehead; 

 avrpov, cave ; trig, inflammation]. Inflammation of 

 the metopantron. 



Metopantron, Metopantrum (met-o-pan'-tron, tuct-o- 

 pan'-trum) [/ietuttov, forehead ; avrpov, cave]. The 

 frontal sinus. 



Metope (met'-o-pe) [(metuttov, face]. In biology, that 

 portion of the frontal surface of a crustacean in which 

 the antennae are situated. Same as Fades. 



Metopic (met-op 1 '-ik) [fiirunov, forehead]. 1. Relating 

 to the forehead ; frontal. 2. A name applied to a 

 cranium having a medio-frontal suture. M. Points. 

 See Craniometric Points. 



Metopion (met-o'-pe-on) \_fiErumov, forehead]. See 

 Craniometric Points. 



Metopism (met' '-o-piztn) [[ietukov, forehead]. Persist- 

 ence of the frontal suture in adult life. See i 

 Metopon. 



Metopium (met-o / -pe-um). Synonym of Metopon. 



Metopodynia (met-o-po-din' -e-ali) [jietuttov, forehead ; 

 btibvT), pain]. Frontal headache. 



Metopon (met' '-o-pon) [hetuttov, forehead ; from fieri, I 

 between ; wi/>, eye] . Forehead ; also an old name for 1 

 galbanum. 



Metopopagia (met-o-po-pa' -je-ah). Synonym of Meto-\ 

 pagus. 



Metoposcopy (met-op-os'-ko-pe) \_11krwK0v, forehead;* 

 okoweiv, to examine]. A variety of phrenology in 

 which the character or the future of an individual i* 

 supposed to be determined by an inspection of tin 

 forehead. 



Metosteon (met-os f -te-oti) [/uetA, after; bariov, a b 

 pi, Metostea\ In biology, the posterior lateral 

 of the sternum of a bird. 



Metovum (tnet-0 1 '-viim) [//era, after; uov, egg: 

 Metova\ In embryology, an ovum that has 

 modified from its primitive condition as an e^ < 

 protovum ; an after-egg or deutovum. Cf. (>■ 

 Ovum. 



Metra (me'-trah) [ui/rpa, uterus]. The uterus. 



Metralgia (met-ral' '-je-ah) [fii/rpa, womb ; u 

 Pain or neuralgia of the uterus. 



Metranastrophe (tnet-ran-as'-tro-fe) [/it/rpa, w 

 avaorpoipTi, a turning upside down]. Inversion 1 

 uterus. 



Metranemia (met - ran -e'- me -ah) [fifjTpa, wombj 

 priv. ; a'tfia, blood]. Uterine anemia. 



Metraneurysm (met-ran'-u-rizw) [/n'/rpa, woml 

 uvebpvofia, dilatation]. Dilatation of the uterus 

 vulva. 



Metrasia (mel-ra'-ze-ah). Synonym of Metratn 



Metratome (met f -rat-om) [pf/rpa, womb ; rofii/, a ci 

 ting]. An instrument for incising the womb. 



