pea aphid

noun

: a widely distributed aphid (Acyrthosiphon pisum) that is a serious pest on legumes (such as alfalfa, pea, and clover)

Examples of pea aphid in a Sentence

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High-speed photography and mathematical modeling revealed the secret of the pea aphid. Elizabeth Preston, Discover Magazine, 5 Feb. 2013

Word History

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of pea aphid was in 1903

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Cite this Entry

“Pea aphid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pea%20aphid. Accessed 9 Sep. 2025.

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