metaldehyden.

Brit.

/mɛˈtaldᵻhʌɪd/,

/mᵻˈtaldᵻhʌɪd/, U.S.

/məˈtældəˌhaɪd/

Forms: 1800s metaldehyd, 1800s– metaldehyde.

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

Etymology: < meta- prefix + aldehyde n. Compare Meta n.²

Chemistry.

A low-molecular-weight solid polymer of acetaldehyde, (C₂H₄O)_n, used as a slug poison and as a portable fuel for cooking and heating. Cf. Meta n.²

ΘΚΠ

the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others

acrolein1841

metaldehyde1841

trichlorocetaldehyde1845

valeral1852

toluic aldehyde1857

glyoxal1858

acraldehyde1864

propionic aldehyde1866

lauric aldehyde, ether1868

salicylaldehyde1869

dialdane1876

isovaleraldehyde1883

rhodinal1892

propenal1894

oxaldehyde1895

methylglyoxal1898

hadromal1899

malondialdehyde1904

pyruvic aldehyde1909

trioxan1915

plasmal1925

1841 W. T. Brande Man. Chem. 1330 By long keeping, aldehyd spontaneously changes into two isomeric compounds, metaldehyd, and elaldehyd; the former solid, the latter liquid.

1852 W. Gregory Handbk. Org. Chem. (ed. 3) 206 When long kept, even in sealed tubes, aldehyde is transformed into two polymeric modifications, namely, metaldehyde, a hard crystalline inodorous solid, and elaldehyde, which is liquid.

1885 I. Remsen Introd. Study Compounds of Carbon (1888) 49 Metaldehyde.

1949 New Biol. 6 29 The most usual and one of the most successful methods of killing large numbers is to put out heaps of bran mixed with metaldehyde—the bran attracts the slugs which feed on the mixture, while the metaldehyde causes them to slime so profusely that they remain on the surface of the soil in close proximity to the bait.

1974 Country Life 24 Oct. 1228/1 Work at the Terrington EHF has compared metaldehyde and methiocarb [slug] pellet baits.

1993 Harrowsmith June 18/3 A common slug bait called metaldehyde..is another cruel killer.

This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	metaldehyde
释义	metaldehyden. Brit. /mɛˈtaldᵻhʌɪd/, /mᵻˈtaldᵻhʌɪd/, U.S. /məˈtældəˌhaɪd/ Forms: 1800s metaldehyd, 1800s– metaldehyde. Origin: Formed within English, by derivation. Etymons: meta- prefix, aldehyde n. Etymology: < meta- prefix + aldehyde n. Compare Meta n.² Chemistry. A low-molecular-weight solid polymer of acetaldehyde, (C₂H₄O)_n, used as a slug poison and as a portable fuel for cooking and heating. Cf. Meta n.² ΘΚΠ the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > miscellaneous named aldehydes > others acrolein1841 metaldehyde1841 trichlorocetaldehyde1845 valeral1852 toluic aldehyde1857 glyoxal1858 acraldehyde1864 propionic aldehyde1866 lauric aldehyde, ether1868 salicylaldehyde1869 dialdane1876 isovaleraldehyde1883 rhodinal1892 propenal1894 oxaldehyde1895 methylglyoxal1898 hadromal1899 malondialdehyde1904 pyruvic aldehyde1909 trioxan1915 plasmal1925 1841 W. T. Brande Man. Chem. 1330 By long keeping, aldehyd spontaneously changes into two isomeric compounds, metaldehyd, and elaldehyd; the former solid, the latter liquid. 1852 W. Gregory Handbk. Org. Chem. (ed. 3) 206 When long kept, even in sealed tubes, aldehyde is transformed into two polymeric modifications, namely, metaldehyde, a hard crystalline inodorous solid, and elaldehyde, which is liquid. 1885 I. Remsen Introd. Study Compounds of Carbon (1888) 49 Metaldehyde. 1949 New Biol. 6 29 The most usual and one of the most successful methods of killing large numbers is to put out heaps of bran mixed with metaldehyde—the bran attracts the slugs which feed on the mixture, while the metaldehyde causes them to slime so profusely that they remain on the surface of the soil in close proximity to the bait. 1974 Country Life 24 Oct. 1228/1 Work at the Terrington EHF has compared metaldehyde and methiocarb [slug] pellet baits. 1993 Harrowsmith June 18/3 A common slug bait called metaldehyde..is another cruel killer. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1841
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