Definitions
from The Century Dictionary.
- noun A substance into which aldehyde is partially converted in contact with acids at a low temperature. It is a white crystalline solid.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A white crystalline substance isomeric with, and obtained from, acetic aldehyde by polymerization, and reconvertible into the same.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry A
cyclic tetramer ofacetaldehyde , commonly used as amolluscicide .
Etymologies
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Examples
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Caffeine has been found to be more effective than the chemical metaldehyde in killing slugs.
Archive 2009-11-01 Zenmomma 2009
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Caffeine has been found to be more effective than the chemical metaldehyde in killing slugs.
25 Reasons You Should Drink More Coffee Zenmomma 2009
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The poison metaldehyde, tablets of which were left at study plots.
Papers read this week AYDIN 2006
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The poison metaldehyde, tablets of which were left at study plots.
Archive 2006-11-01 AYDIN 2006
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Most molluscicides are based on methiocarb or metaldehyde.
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We have three other bodies which pass through similar changes, in aldehyde, metaldehyde, and etaldehyde; and, again two, in urea and cyanuret of ammonia.
Familiar Letters on Chemistry Justus Freiherr von Liebig 1838
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The good news was that metaldehyde had been found at much reduced levels, partly due to a drier autumn but also the efforts of producers responding to the metaldehyde stewardship campaign, he noted.
FWi - All News 2010
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The good news was that metaldehyde had been found at much reduced levels, partly due to a drier autumn but also the efforts of producers responding to the metaldehyde stewardship campaign, he noted.
FWi - All News 2010
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But metaldehyde had also been detected at low levels in some of these supplies.
FWi - All News 2010
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Removing metaldehyde was difficult, bordering on impossible to remove, even with an advanced pesticide removal plant, he noted, making blending with clean water, such as from boreholes, the only option to reduce levels, he said.
FWi - All News 2010
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