metaldehyde

noun

met·​al·​de·​hyde ˌmet-ˈal-də-ˌhīd How to pronounce metaldehyde (audio)
: a crystalline compound (CH3CHO)4 that is a polymer of acetaldehyde and is used as a lure and poison for snails and slugs

Examples of metaldehyde in a Sentence

Recent Examples on the Web Snails and slugs that have eaten metaldehyde often seek hiding places, become inactive and begin to die within days. Teddy Grant, ABC News, 20 June 2023 The properties where the snails were found will be treated with the slug and snail killer metaldehyde over the next 18 months and the area will be monitored for two years after the last snail is found, per Field and Stream’s Ashley Stimpson. Margaret Osborne, Smithsonian Magazine, 21 July 2022 According to Chitty, FDACS plans to spend three years eradicating the population in Pasco County, using the pesticide metaldehyde to treat the soil. Zoe Sottile, CNN, 3 July 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'metaldehyde.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

probably from meta- + aldehyde

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of metaldehyde was in 1841

Dictionary Entries Near metaldehyde

Cite this Entry

“Metaldehyde.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/metaldehyde. Accessed 25 Apr. 2024.

Medical Definition

metaldehyde

noun
met·​al·​de·​hyde ˌmet-ˈal-də-ˌhīd How to pronounce metaldehyde (audio)
: a crystalline compound (C2H4O)n that is a cyclic oligomer of acetaldehyde used as a solid fuel for portable stoves and as a lure and poison for snails
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