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thyridium

From Wiktionary, the free dictionary

English

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Etymology

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From Latin thyridium, from Ancient Greek θυρίδιον (thurídion), diminutive of θύρᾱ (thúrā, “door”).

Noun

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thyridium (plural thyridia)

  1. (entomology) A spot in the wing veins of Neuroptera, Hymenoptera and Trichoptera.
  2. (entomology) A spot on both sides of the second abdominal tergite in ichneumonids
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