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pea aphid

noun
  1. a large green aphid, Acyrthosiphon pisum, that is a pest of peas, clovers, alfalfa, and similar plants and occurs throughout North America.
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Origin of pea aphid

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018