polyphalange en · NOUN
Etymology
From poly- + phalange.
Meanings
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(no-plural) An extra phalanx.
Some birds had four toes, but the anterior-most toe had an extra phalanx that was termed the polyphalange, and was considered a variation of polydactyly in the analyses of the present study.
2016 February 10, “Parallel Evolution of Polydactyly Traits in Chinese and European Chickens”, in PLOS ONE, →DOI: