olefinicadj.

Brit.

/ˌəʊlᵻˈfɪnɪk/, U.S.

/ˌoʊləˈfɪnɪk/

Origin: Formed within English, by derivation. Etymons: olefin n., -ic suffix.

Etymology: < olefin n. + -ic suffix.

Chemistry.

Of the nature of or relating to an olefin; characteristic of an olefin; spec. designating a double bond between two carbon atoms such as is characteristic of olefins (cf. ethylenic adj. at ethylene n. Derivatives).

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [adjective] > alkenes

ethylic1840

ethenoid1893

olefinic1898

1898 J. Wade Introd. Study Org. Chem. lvi. 344 On gentle oxidation it [sc. linaloöl] yields an olefinic ketone.

1923 Daily Mail 15 Feb. 3 Those olefinic and empyreumatic substances which result from the distillation of coal or oil.

1944 Sci. Monthly Jan. 12/2 The olefinic bonds of the isobutylene molecules are used in joining other isobutylene molecules to form the chain.

1949 Our Industry (Anglo-Iranian Oil Co.) (ed. 2) xiii. 287 Aviation fuel... Bromine Number.—This test gives a measurement of the ‘unsaturated’ or ‘olefinic’ type of hydrocarbon.

1989 tr. C. Elschenbroich & A. Salzer Organometallics xiv. 207 The olefinic double bond remains unchanged by σ-coordination.

2000 European Jrnl. Medicinal Chem. 35 967 Various torsion angles as well as atomic charges on olefinic carbon atoms were determined by molecular modelling on all compounds.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	olefinic
释义	olefinicadj. Brit. /ˌəʊlᵻˈfɪnɪk/, U.S. /ˌoʊləˈfɪnɪk/ Origin: Formed within English, by derivation. Etymons: olefin n., -ic suffix. Etymology: < olefin n. + -ic suffix. Chemistry. Of the nature of or relating to an olefin; characteristic of an olefin; spec. designating a double bond between two carbon atoms such as is characteristic of olefins (cf. ethylenic adj. at ethylene n. Derivatives). ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [adjective] > alkenes ethylic1840 ethenoid1893 olefinic1898 1898 J. Wade Introd. Study Org. Chem. lvi. 344 On gentle oxidation it [sc. linaloöl] yields an olefinic ketone. 1923 Daily Mail 15 Feb. 3 Those olefinic and empyreumatic substances which result from the distillation of coal or oil. 1944 Sci. Monthly Jan. 12/2 The olefinic bonds of the isobutylene molecules are used in joining other isobutylene molecules to form the chain. 1949 Our Industry (Anglo-Iranian Oil Co.) (ed. 2) xiii. 287 Aviation fuel... Bromine Number.—This test gives a measurement of the ‘unsaturated’ or ‘olefinic’ type of hydrocarbon. 1989 tr. C. Elschenbroich & A. Salzer Organometallics xiv. 207 The olefinic double bond remains unchanged by σ-coordination. 2000 European Jrnl. Medicinal Chem. 35 967 Various torsion angles as well as atomic charges on olefinic carbon atoms were determined by molecular modelling on all compounds. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1898
随便看	land-monster land-mouse land-nationalization land-nationalizer land-neck land-oath land-occupier land-office land-office business land-packet land-passage land-peerage land-penned land-people land-pilot land-pirate land-planning land-plant land-plaster land-pole land-poor land-power land-presser land-price land-proprietor