| 释义 |
meˈtaldehyde Chem.
[f. meta- 6 a + aldehyde.]
A solid isomeric with aldehyde. Cf. meta n.2
1841Brande Chem. 1330 By long keeping, aldehyd spontaneously changes into two isomeric compounds, metaldehyd, and elaldehyd; the former solid, the latter liquid. 1885I. Remsen Org. Chem. (1888) 49 Metaldehyde. 1949New Biol. VI. 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. Here they die partly as the result of the metaldehyde acting as a stomach poison and partly owing to desiccation. 1963Which? Mar. 88/2 A comparatively ‘safe’ poison is metaldehyde, now the most generally used for killing slugs. 1974Country Life 24 Oct. 1228/1 Work at the Terrington EHF has compared metaldehyde and methiocarb [slug] pellet baits. |