olefinn.

Brit.

/ˈəʊlᵻfᵻn/, U.S.

/ˈoʊləf(ə)n/

Forms: 1800s– olefine Brit.

/ˈəʊlᵻfiːn/,

/ˈəʊlᵻfᵻn/, U.S.

/ˈoʊl(ə)fən/, 1900s– olefin.

Origin: Formed within English, by derivation. Etymons: olefiant adj., -in suffix¹.

Etymology: < olefi- (in olefiant adj.) + -in suffix¹.With early forms in -ine compare -ine suffix⁵. The spelling olefin is now generally used in accordance with the practice of reserving -ine suffix⁵ for the naming of basic compounds and heterocyclic compounds containing nitrogen.

1. Chemistry. Any of the series of unsaturated hydrocarbons containing a double bond and having the general formula C_nH_2n. Also called alkene.The simplest olefins are ethylene (ethene), C₂H₄, and propylene (propene), C₃H₆.

ΘΚΠ

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

olefin1860

alkylene1886

alkene1899

1860 F. Guthrie in Jrnl. Chem. Soc. 12 109 The isolation of the so-called organic radicals, the hydrides of the olefines.

1866 H. E. Roscoe Lessons Elem. Chem. xxxiii. 297 The higher carbon series yield olefines corresponding to ethylene.

1899 E. F. Smith tr. V. von Richter Org. Chem. (ed. 3) I. 89 C_nH_2n: Olefines, Alkylens, Alkenes.

1923 T. G. Phillips Fund. Org. & Biol. Chem. ix. 131 Similar series [of compounds] may be derived from the olefin hydrocarbons.

1949 R. F. Goldstein Petroleum Chem. Industry vi. 124 The higher olefins are present in all fractions of the petrol range of thermally and catalytically cracked oils.

1959 Petroleum Times 25 Sept. 602/1 No. 3 olefine plant is..based on the steam cracking process.

1968 R. O. C. Norman Princ. Org. Synthesis viii. 262 This discussion indicates the difficulties necessarily present in effecting the dimerization of an olefin.

1997 Lamp Spring 31/2 Steam cracking is the primary process for making olefins, the basic building blocks for plastics.

2. North American. A man-made fibre made from or consisting of a polyolefin, such as polyethylene or polypropylene. Usually attributive.

ΘΚΠ

the world > textiles and clothing > textiles > man-made textiles > [noun]

acetyl cellulose1879

artificial silk1879

art silk1885

Chardonnet silk1893

triacetate1895

viscose silk1913

Celanese1921

rayon1924

fibro1926

staple fibre1928

viscose rayon1930

viscose1932

Lanital1936

Tricel1954

polynosic1959

olefin1960

modal1977

1960 Mod. Textiles Mag. Sept. 58 Olefin, a manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of ethylene, propylene, or other olefin units.

1964 Life 2 Oct. 22/2 (advt.) They're locked into the Herculon polypropylene olefin fiber.

1985 Cincinnati Enquirer 18 Oct. a10/2 Choose from Queen Anne style and swivel rockers in shrimp, blue or beige..olefin velvet.

1992 Chicago Tribune 22 Nov. xv. 8/5 Your final decision, the fabric, can be the most difficult. Choices include nylon, polyester,..and olefin (an especially inexpensive synthetic).

1997 Courier-Jrnl. (Louisville, Kentucky) 20 Apr. a13 (advt.) Heat-set olefin rugs in assorted colors and patterns.

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

单词	olefin
释义	olefinn. Brit. /ˈəʊlᵻfᵻn/, U.S. /ˈoʊləf(ə)n/ Forms: 1800s– olefine Brit. /ˈəʊlᵻfiːn/, /ˈəʊlᵻfᵻn/, U.S. /ˈoʊl(ə)fən/, 1900s– olefin. Origin: Formed within English, by derivation. Etymons: olefiant adj., -in suffix¹. Etymology: < olefi- (in olefiant adj.) + -in suffix¹.With early forms in -ine compare -ine suffix⁵. The spelling olefin is now generally used in accordance with the practice of reserving -ine suffix⁵ for the naming of basic compounds and heterocyclic compounds containing nitrogen. 1. Chemistry. Any of the series of unsaturated hydrocarbons containing a double bond and having the general formula C_nH_2n. Also called alkene.The simplest olefins are ethylene (ethene), C₂H₄, and propylene (propene), C₃H₆. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes olefin1860 alkylene1886 alkene1899 1860 F. Guthrie in Jrnl. Chem. Soc. 12 109 The isolation of the so-called organic radicals, the hydrides of the olefines. 1866 H. E. Roscoe Lessons Elem. Chem. xxxiii. 297 The higher carbon series yield olefines corresponding to ethylene. 1899 E. F. Smith tr. V. von Richter Org. Chem. (ed. 3) I. 89 C_nH_2n: Olefines, Alkylens, Alkenes. 1923 T. G. Phillips Fund. Org. & Biol. Chem. ix. 131 Similar series [of compounds] may be derived from the olefin hydrocarbons. 1949 R. F. Goldstein Petroleum Chem. Industry vi. 124 The higher olefins are present in all fractions of the petrol range of thermally and catalytically cracked oils. 1959 Petroleum Times 25 Sept. 602/1 No. 3 olefine plant is..based on the steam cracking process. 1968 R. O. C. Norman Princ. Org. Synthesis viii. 262 This discussion indicates the difficulties necessarily present in effecting the dimerization of an olefin. 1997 Lamp Spring 31/2 Steam cracking is the primary process for making olefins, the basic building blocks for plastics. 2. North American. A man-made fibre made from or consisting of a polyolefin, such as polyethylene or polypropylene. Usually attributive. ΘΚΠ the world > textiles and clothing > textiles > man-made textiles > [noun] acetyl cellulose1879 artificial silk1879 art silk1885 Chardonnet silk1893 triacetate1895 viscose silk1913 Celanese1921 rayon1924 fibro1926 staple fibre1928 viscose rayon1930 viscose1932 Lanital1936 Tricel1954 polynosic1959 olefin1960 modal1977 1960 Mod. Textiles Mag. Sept. 58 Olefin, a manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of ethylene, propylene, or other olefin units. 1964 Life 2 Oct. 22/2 (advt.) They're locked into the Herculon polypropylene olefin fiber. 1985 Cincinnati Enquirer 18 Oct. a10/2 Choose from Queen Anne style and swivel rockers in shrimp, blue or beige..olefin velvet. 1992 Chicago Tribune 22 Nov. xv. 8/5 Your final decision, the fabric, can be the most difficult. Choices include nylon, polyester,..and olefin (an especially inexpensive synthetic). 1997 Courier-Jrnl. (Louisville, Kentucky) 20 Apr. a13 (advt.) Heat-set olefin rugs in assorted colors and patterns. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1860
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