Ethyl (Eth"yl) 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.
Ethyl aldehyde. (Chem.) See Aldehyde.
Ethylamine (Eth`yl*am"ine) 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.
Ethylate (Eth"yl*ate) 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.
Ethylene (Eth"yl*ene) 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.
Ethylene series (Chem.), the series of unsaturated hydrocarbons of which ethylene is the type, and
represented by the general formula CnH2n.
Ethylic (E*thyl"ic) (Chem.) Pertaining to, derived from, or containing, ethyl; as, ethylic alcohol.
Ethylidene (E*thyl"i*dene) (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.
Ethylin (Eth"yl*in) (Chem.) Any one of the several complex ethers of ethyl and glycerin.
Ethylsulphuric (Eth`yl*sul*phu"ric) a. (Chem.) Pertaining to, or containing, ethyl and sulphuric acid.
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.
Etiolate (E"ti*o*late) v. i. [imp. & p. p. Etiolated (#); p. pr. & vb. n. Etiolating.] [F. étioler to blanch.]
1. To become white or whiter; to be whitened or blanched by excluding the light of the sun, as, plants.
2. (Med.) To become pale through disease or absence of light.
Etiolate (E"ti*o*late), v. t.
1. To blanch; to bleach; to whiten by depriving of the sun's rays.
2. (Med.) To cause to grow pale by disease or absence of light.
Etiolate (E"ti*o*late E"ti*o*la`ted), a. Having a blanched or faded appearance, as birds inhabiting desert
regions.
Etiolation (E`ti*o*la"tion) n.
1. The operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant.
2. (Med.) Paleness produced by absence of light, or by disease. Dunglison.
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