† metacetyln.

Forms: 1800s metacetyle, 1800s metacetyl.

Origin: Formed within English, by derivation. Etymons: meta- prefix, acetyl n.

Etymology: < meta- prefix + acetyl n. N.E.D. (1906) gives the pronunciation (metæ·sĭtil) /mɛˈtæsɪtɪl/.

Chemistry. Obsolete.

The propionyl radical, CH₃CH₂CO—.

ΚΠ

1848 W. T. Brande Man. Chem. (ed. 6) 1732 Metacetone. Oxide of Metacetyle.

1850 Philos. Trans. (Royal Soc.) 140 129 The existence of a series of bases of the formula C_nH_n+1N, i.e. bases containing formyl, acetyl, propionyl (metacetyl), butyryl, &c., appears to be still doubtful.

1890 New Sydenham Soc. Lexicon Metacetyl, same as Propionyl.

This entry has been updated (OED Third Edition, December 2001; most recently modified version published online December 2020).

单词	metacetyl
释义	† metacetyln. Forms: 1800s metacetyle, 1800s metacetyl. Origin: Formed within English, by derivation. Etymons: meta- prefix, acetyl n. Etymology: < meta- prefix + acetyl n. N.E.D. (1906) gives the pronunciation (metæ·sĭtil) /mɛˈtæsɪtɪl/. Chemistry. Obsolete. The propionyl radical, CH₃CH₂CO—. ΚΠ 1848 W. T. Brande Man. Chem. (ed. 6) 1732 Metacetone. Oxide of Metacetyle. 1850 Philos. Trans. (Royal Soc.) 140 129 The existence of a series of bases of the formula C_nH_n+1N, i.e. bases containing formyl, acetyl, propionyl (metacetyl), butyryl, &c., appears to be still doubtful. 1890 New Sydenham Soc. Lexicon Metacetyl, same as Propionyl. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online December 2020). < n.1848
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