%ethyl%

n. [ Pref. di- + methyl. ] (Chem.) Ethane; -- sometimes so called because regarded as consisting of two methyl radicals. See Ethane. [ 1913 Webster ]

n. [ Ether + -yl. ] (Chem.) A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether. [ 1913 Webster ]

Ethyl aldehyde. (Chem.) See Aldehyde. [ 1913 Webster ]

n. (Chem.) the organic compound C2H5.OH, which is the intoxicating agent in beer, wine, and other fermented and distilled liquors; it is used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel.
Syn. -- ethanol, fermentation alcohol, grain alcohol. [ WordNet 1.5 ]

n. [ Ethyl + amine. ] (Chem.) A colorless, mobile, inflammable liquid, C2H5.NH2, very volatile and with an ammoniacal odor. It is a strong base, and is a derivative of ammonia. Called also ethyl carbamine, and amido ethane. [ 1913 Webster ]

n. [ From Ethyl. ] (Chem.) A compound derived from ethyl alcohol by the replacement of the hydroxyl hydrogen, after the manner of a hydrate; an ethyl alcoholate; as, potassium ethylate, C2H5.O.K. [ 1913 Webster ]

v. t. [ imp. & p. p. Ethylated; p. pr. & vb. n. Ethylating. ] [ From Ethyl. ] (Chem.) To treat in such a way as to cause the introduction of one or more ethyl groups, C2H5-; as, to ethylate alcohol. [ Webster 1913 Suppl. ]

n. [ From Ethyl. ] (Chem.) A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen. [ 1913 Webster ]

Ethylene series (Chem.), the series of unsaturated hydrocarbons of which ethylene is the type, and represented by the general formula CnH2n. [ 1913 Webster ]

(Chem.) Pertaining to, derived from, or containing, ethyl; as, ethylic alcohol. [ 1913 Webster ]

(Chem.) An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.CH= to distinguish it from the symmetrical ethylene, CH2=CH2. Its compounds are derived from aldehyde. Formerly called also ethidene. [ 1913 Webster ]

pos>n. (Chem.) Any one of the several complex ethers of ethyl and glycerin. [ 1913 Webster ]

(Chem.) A gaseous substance (C2H5.SH) used as an odorant in natural gas and propane to facilitate detection and serve as a warning of leaks. [ PJC ]

pos>a. (Chem.) Pertaining to, or containing, ethyl and sulphuric acid. [ 1913 Webster ]

Ethylsulphuric acid (Chem.), an acid sulphate of ethyl, H.C2H5.SO4, produced as a thick liquid by the action of sulphiric acid on alcohol. It appears to be the active catalytic agent in the process of etherification. [ 1913 Webster ]

n. a methyl radical with a hydroxyl group replacing one of the hydrogen atoms. [ WordNet 1.5 ]

n. [ See Methylene. ] (Chem.) A univalent hydrocarbon radical, CH3-, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [ Formerly written also methule, methyle, etc. ] [ 1913 Webster ]

Methyl alcohol (Chem.), a light, volatile, inflammable liquid, CH3.OH, obtained by the distillation of wood, and hence called wood alcohol or wood spirit; tecnically referred to as methanol; -- called also methol, carbinol, etc. --
Methyl amine (Chem.), a colorless, inflammable, alkaline gas, CH3.NH2, having an ammoniacal, fishy odor. It is produced artificially, and also occurs naturally in herring brine and other fishy products. It is regarded as ammonia in which a third of its hydrogen is replaced by methyl, and is a type of the class of substituted ammonias. --
Methyl ether (Chem.), a light, volatile ether CH3.O.CH3, obtained by the etherification of methyl alcohol; -- called also methyl oxide or dimethyl ether. --
Methyl green. (Chem.) See under Green, n. --
Methyl orange. (Chem.) See Helianthin. --
Methyl violet (Chem.), an artificial dye, consisting of certain methyl halogen derivatives of rosaniline. [ 1913 Webster ]

n. [ Methylene + alcohol. ] (Chem.) A light, volatile liquid, H2C(OCH3)2, regarded as a complex ether, and having a pleasant ethereal odor. It is obtained by the partial oxidation of methyl alcohol. Called also formal. [ 1913 Webster ]

n. (Chem.) See Methyl amine, under Methyl. [ 1913 Webster ]

n. [ Methyl + alcoholate. ] (Chem.) An alcoholate of methyl alcohol in which the hydroxyl hydrogen is replaced by a metal, after the analogy of a hydrate; as, sodium methylate, CH3ONa. [ 1913 Webster ]

v. t. To impregnate or mix with methyl or methyl alcohol. [ 1913 Webster ]

a. (Chem.) Impregnated with, or containing, methyl alcohol or wood spirit; as, methylated spirits. [ 1913 Webster ]

n. [ F. méthylène, from Gr. &unr_; wine + &unr_; wood; -- a word coined to correspond to the name wood spirit. ] (Chem.) A divalent hydrocarbon radical, -CH2-, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene. [ 1913 Webster ]

Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also pure blue. [ 1913 Webster ]

n. a drug designed to have the effects of amphetamines but to avoid the drug laws, but now a controlled substance. Called also MDMA.
Syn. -- MDMA, Adam, ecstasy. [ WordNet 1.5 ]

a. (Chem.) Pertaining to, derived from, or containing, methyl; specifically, designating methyl alcohol. See under Methyl. [ 1913 Webster ]

n. [ Oxalic + ethyl + -ine. ] A poisonous nitrogenous base (C6H10N2) obtained indirectly from oxamide as a thick transparent oil which has a strong narcotic odor, and a physiological action resembling that of atropine. It is probably related to pyridine. [ 1913 Webster ]

n. [ Oxamic + methyl. ] (Chem.) Methyl oxamate, obtained as a pearly white crystalline substance. [ 1913 Webster ]

n. [ Oxy- (a) + methylene. ] (Chem.) Formic aldehyde, regarded as a methylene derivative. [ 1913 Webster ]

n. [ Penta- + methylene. ] (Chem.) A hypothetical hydrocarbon, C5H10, metameric with the amylenes, and the nucleus of a large number of derivatives; -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene. [ 1913 Webster ]

n. [ Tetra- + methylene. ] (Chem.) (a) A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives. (b) Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene. [ 1913 Webster ]

n. [ Pref. tri- + ethylamine. ] (Chem.) A tertiary amine analogous to trimethylamine. [ 1913 Webster ]

(Chem.) A prefix or combining form (also used adjectively) indicating the presence of three methyl groups. [ 1913 Webster ]

n. [ Trimethyl- + amine. ] (Chem.) A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups. [ 1913 Webster ]