plural thyridia
: a pale spot in the wing vein of some insects especially of the orders Hymenoptera and Trichoptera
: one of a pair of oval pits on the second abdominal tergite of some hymenopterans

Word History


New Latin, from Greek thyridion window, diminutive of thyra door

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Dictionary Entries Near thyridium

Cite this Entry

“Thyridium.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

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