jointworm

noun
joint·​worm | \ ˈjȯint-ˌwərm How to pronounce jointworm (audio) \

Definition of jointworm

: the larva of any of several small chalcid wasps (genus Tetramesa synonym Harmolita) that attacks the stems of grain-producing plants (as wheat or barley) and causes swellings like galls at or just above the first joint

First Known Use of jointworm

1851, in the meaning defined above

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The first known use of jointworm was in 1851

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Cite this Entry

“Jointworm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jointworm. Accessed 6 May. 2021.

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