METACHLORAL 



METHYLIC 



q .v.]=CfiH 10 : an oily liquid obtained by the 

 distillation of sucrose. 



Metachloral, ( met - a - klo'ral ). [Meta and 

 Chloral, q.v.] An anaesthetic obtained by 

 acting on anhydrous chloral with sulphuric 

 acid. 



Metagenesis, (met-a-jen'e-sis). [Meta and 

 Genesis, q.v.] v. Genesis. v. Develop- 

 ment. 



Metaglobin, (met-a-glob'in). . An albuminoid 

 substance. 



Metal, (met'al). [Metallum, the Latin word.] 

 v. Metals. 



Metalae, (met'a-le)=Hind wings, v. Wings. 



Metaldehyd, (met-al'-de-hid). [Meta and 

 Aldehyde, q.v.] A crystalline substance 

 found in aldehyd. 



Metallic, (met-al'lik). [Metal, q.v.'] Relating 

 to metals. M. cyanides: compounds of cyano- 

 gen with metals. M. thermometer =Brequet's 

 thermometer, q.v. 



Metalliferous, (met-al-lif'er-us). [Metal, q.v. ; 

 L. fcro, I bear.] M. rocks: rocks in which 

 metallic veins are found. 



Metallurgy, (met'al-ur-ji). [Metal, q.v. ; Gk. 

 ergon, work.] The science and art of work- 

 ing metals. 



Metals, (met'alz). [Metal, q.v.] Electro- 

 positive substances, which are usually solid, 

 opaque, lustrous, good conductors of heat 

 and electricity, heavier than water, and 

 combine with oxygen to form bases. 

 Alkali-metals, q.v. 

 Alkaline earth-metals, q.v. 

 Earth metals, q.v. 

 Magnesian metals, q. v. 

 Iron-like metals, q.v. 

 Noble metals, q.v. 



Native metals: those which, like gold, 

 mercury, &c., are found in the metallic 

 condition. 



Metameric, (met-a-mer'ik). [Gk. meta, be- 

 yond; meros, part.] Having the character 

 of metamerides, q.v. 



Metamerides, (met-a-mer'i-dez). [Gk. meta, 

 beyond; meros, part.] Bodies having the 

 same number of chemical equivalents, and 

 the same ultimate composition, but differing 

 in character and properties. 



Metamorphic, (met-a-morf ik). [Gk. meta, be- 

 yond; morphe, form.] M. rodts=Crystalline 

 schists: unfossiliferous rocks which have 

 been changed in structure since deposition, 

 such as quartz, gneiss, &c. M. limestone= 

 Primary limestone. 



Metamorphosis, (met-a-mor'fo-sis). [Gk. 

 meta, beyond ; morphe, form.] Transfor- 

 mation: in biology, a form of development, 

 q.v. 



Metanaphthalin, (met-a-naftha-lin). [Meta 

 and Naptha, g.i>.]=Retisterene: a modified 

 form of Naphthalin. 



Metapectic acid, (met-a-pek'tic). [Meta and 

 Pectic, qv.] C 8 H 14 O 9 ; a modification of 

 Pectic acid. 



Metapedes, (met-ap'e-dez). [Gk. meta, be- 

 yond; pous, foot.]=Hind legs. 



Metapodium, (met-a-po'di-um). [Gk. meta, 

 beyond; pous, foot.] The hinder portioii 



of the foot, especially in some molluscous 

 animals, cf. Mesopodium and Propodium. 



Metapophyses, (met-a-pofi-sez). [Meta and 

 Apophysis, q.v.] Small rounded projections 

 of the last dorsal vertebra of the spinal 

 column. 



Metapterygoid, ( met-ap-ter'i-goid ). [ Meta 

 and Pterygoid, q.v.] A modification of the 

 malleus bone in osseous or bony fishes. 



Metastyrol, (met-a-stl'rol). [Meta and Styro- 

 lene, q.v.] = Dracouyl : a modification of 

 styrolene. 



Metatarsal bones, ( met-a-tar'sal ). [Meta- 

 tarsus, q.v.] Five bones forming the lower 

 instep. 



Metatarsus, (met-a-tar'sus). [Gk. meta, be- 

 yond; tarsus, instep.] The bones forming 

 the body of the foot. 



Meteors, (me'te-orz). [Gk. meteoros, high in 

 the air.]=Bolides or shooting stars: luminous 

 bodies falling upon the earth's surface; pro- 

 bably small planets or asteroids ignited by 

 friction when in contact with the atmos- 

 phere of the earth. 



Meteor-showers. Usually in August, Nov., 

 December, and also at other times; excep- 

 tionally bright every 33 years. 



Meteorites, (me'te-6-rits). [Meteor, q.v.]= 

 Aerolites, siderolites, and aerosiderites, q.v. 



Meterology, (roe-te-or-ol'6-ji). [Gk. meteoros, 

 high in the air; logos, discourse.] The 

 science of atmospheric phenomena. 



Meter, (me'ter). [Gk. metron, measure.] An 

 apparatus for measurement, v. Galvano- 

 meter, Endosmometer, Evapometer, &c. 



Methacetic acid=Propionic acid, q.v. 



Methane, (meth'an). [Methyl, q.v.] CH 4 = 

 Methyl hydride=Marsh gas, q.v. =Formeue. 

 v. Hydrocarbons. 



Methene, (meth'en). [Methenyl, q.v.] CHo: 

 one of the second series of Hydrocarbons, 

 q.v. 



Methenyl, (meth'e-nil). [Methyl.] CH: the 

 radicle of the second series of Hydrocarbons, 

 q.v. 



Methyl, (meth'il). [Gk. meta, beyond; liyle, 

 wood.] Me=CHg: a gaseous hydrocarbon; 

 one of the alcoholic radicles. The radicle 

 of the methylic series. M. c/i?orirfe=Chloro- 

 form. M. /7/dride=Marsh gas. M. hydrate 

 =Woodspirit = Pyroxylic spirit = Carbinol. 

 M. oxide = Methylic ether. M. phenol = 

 Kresol. M. salicylateGimliheric acid. 



Methylated, (meth-i-la'ted). [Methyl, q.v.] 

 M.-acetone Ethyl-acetyl. M. spirit: a mix- 

 ture of wood-spirit and alcohol. 



Methylconylia, (meth-il-ko-nil'i-a 

 a modified form of conylia. v. Conia. 



Methylene, (meth'i-len). [Methyl.] CH 2 : 

 an hypothetical hydrocarbon of* the acety- 

 lene series. 



Methylia, ( meth-il'i-a ). [ Methyl, q.v.] = 

 Methylamine=CH 5 N: a colourless pungent 

 alkaline inflammable gas; one of the primary 

 motnamines. 



Methylic, (meth-il'ik). [Methyl, q.v.] M. 

 a ldehyde= Formaldehyde, q.v. M. ether: an 

 anaesthetic that destroys sensibility but not 

 consciousness. 



