heneicosanen.

Brit.

/hɛˈnʌɪkə(ʊ)seɪn/, U.S.

/hɛˈnaɪkəˌseɪn/

Forms: 1800s henicosane, 1800s– heneicosane.

Origin: A borrowing from Greek, combined with an English element; modelled on a German lexical item. Etymons: Greek ἑν- , εἴκοσι , -ane suffix².

Etymology: < ancient Greek ἑν-, stem of εἷς (masculine) one (see henad n.) + εἴκοσι twenty (see icos- comb. form) + -ane suffix², after German Heneicosan (1882 or earlier).Compare French heneicosane (1883).

Chemistry.

Any of the hydrocarbons of the alkane series having twenty-one carbon atoms, esp. the unbranched isomer (also n-heneicosane), a waxy solid which is a component of petroleum and of safflower and some other plant oils.Formula: C₂₁H₄₄.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > straight-chained by number of carbon atoms > twenty-one

heneicosane1885

1885 T. Carnelley Physico-chemical Constants I. ii. i. 86/1 (table) Heneicosane.

1945 A. N. Sachanen Chem. Constituents Petroleum iv. 232 The heneicosanes substituted in position 11 (C₁₀H₂₁.CHR.C₁₀H₂₁) have low melting points (below −7°C).

1970 Biochimica et Biophysica Acta 202 387 The mass spectrum and gas–liquid chromatographic behaviour of the hydrogenated compound were identical to those of authentic n-heneicosane.

2018 @sstleo_87 21 Mar. in twitter.com (accessed 22 May 2018) A recent study at North Carolina State University has identified the specific chemical (heneicosane) royal termites use to ‘announce’ their presence.

This entry has been updated (OED Third Edition, December 2019; most recently modified version published online March 2022).

单词	heneicosane
释义	heneicosanen. Brit. /hɛˈnʌɪkə(ʊ)seɪn/, U.S. /hɛˈnaɪkəˌseɪn/ Forms: 1800s henicosane, 1800s– heneicosane. Origin: A borrowing from Greek, combined with an English element; modelled on a German lexical item. Etymons: Greek ἑν- , εἴκοσι , -ane suffix². Etymology: < ancient Greek ἑν-, stem of εἷς (masculine) one (see henad n.) + εἴκοσι twenty (see icos- comb. form) + -ane suffix², after German Heneicosan (1882 or earlier).Compare French heneicosane (1883). Chemistry. Any of the hydrocarbons of the alkane series having twenty-one carbon atoms, esp. the unbranched isomer (also n-heneicosane), a waxy solid which is a component of petroleum and of safflower and some other plant oils.Formula: C₂₁H₄₄. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkanes > straight-chained by number of carbon atoms > twenty-one heneicosane1885 1885 T. Carnelley Physico-chemical Constants I. ii. i. 86/1 (table) Heneicosane. 1945 A. N. Sachanen Chem. Constituents Petroleum iv. 232 The heneicosanes substituted in position 11 (C₁₀H₂₁.CHR.C₁₀H₂₁) have low melting points (below −7°C). 1970 Biochimica et Biophysica Acta 202 387 The mass spectrum and gas–liquid chromatographic behaviour of the hydrogenated compound were identical to those of authentic n-heneicosane. 2018 @sstleo_87 21 Mar. in twitter.com (accessed 22 May 2018) A recent study at North Carolina State University has identified the specific chemical (heneicosane) royal termites use to ‘announce’ their presence. This entry has been updated (OED Third Edition, December 2019; most recently modified version published online March 2022). < n.1885
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