Having had feathers removed; stripped of plumage (variant or archaic form).
From deplumate + -ed (past participle/adjectival suffix), or from Latin deplumatatus. A variant form of deplumated or deplumed.
This word is so rare that dictionaries can't quite agree on its exact form—we see deplumated, deplumed, and deplume all competing, showing how technical terms in abandoned fields develop multiple spellings before settling or vanishing.
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