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Johnston's organ

[jon-stuh nz]
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noun Entomology.
  1. a sense organ in the second segment of the antenna of an insect, sensitive to movements of the antenna's flagellum, as when the insect is in flight.
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Origin of Johnston's organ

named after Christopher Johnston (died 1891), American physician
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018