Here you will find one or more explanations in English for the word Pteroglossal.
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Pteroglossal
Pteroglossal Pter`o*glos"sal, a. [Gr. ? a feather + ? tongue.]
(Zo["o]l.)
Having the tongue finely notched along the sides, so as to
have a featherlike appearance, as the toucans.
Meaning of Pteroglossal from wikipedia