英语词汇-idene的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

-idene, suffix Chem.[Prob. taken from ethylidene (ad. F. éthylydène (A. Lieben 1858, in Compt. Rend. XLVI. 663), f. éthylène with insertion of the -yd- of aldehyde).]Forming the names of bivalent organic radicals in which both valencies derive from the same atom. Cf. -ylidene.1927Chem. Abstr. XXI. 4576/1 -idene added to any radical usually means a double bond at point of attachment.1966Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) A. 16 Bivalent and trivalent radicals derived from univalent acyclic hydrocarbon radicals whose authorized names end in ‘-yl’ by removal of one or two hydrogen atoms from the carbon atom with the free valences are named by adding ‘-idene’ or ‘-idyne’, respectively, to the name of the corresponding univalent radical.

-idene /ɪdi:n/ suffix.

ORIGIN: from ethyl)idene.

Chemistry. Forming names of divalent organic radicals in which both valencies derive from the same atom, as propylidene.

-i·dene
\əˌdēn\ noun suffix
(-s)
Etymology: International Scientific Vocabulary -ide (I) + -ene
: radical having two valence bonds at the point of attachment
< ethylidene CH₃CH< >
< ethidene >
— compare -ylidene

词汇	-idene
词根词缀	OED SOED Webster -idene, suffix Chem.[Prob. taken from ethylidene (ad. F. éthylydène (A. Lieben 1858, in Compt. Rend. XLVI. 663), f. éthylène with insertion of the -yd- of aldehyde).]Forming the names of bivalent organic radicals in which both valencies derive from the same atom. Cf. -ylidene.1927Chem. Abstr. XXI. 4576/1 -idene added to any radical usually means a double bond at point of attachment.1966Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) A. 16 Bivalent and trivalent radicals derived from univalent acyclic hydrocarbon radicals whose authorized names end in ‘-yl’ by removal of one or two hydrogen atoms from the carbon atom with the free valences are named by adding ‘-idene’ or ‘-idyne’, respectively, to the name of the corresponding univalent radical. -idene /ɪdi:n/ suffix. ORIGIN: from ethyl)idene. Chemistry. Forming names of divalent organic radicals in which both valencies derive from the same atom, as propylidene. -i·dene \əˌdēn\ noun suffix (-s) Etymology: International Scientific Vocabulary -ide (I) + -ene : radical having two valence bonds at the point of attachment < ethylidene CH₃CH< > < ethidene > — compare -ylidene
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