Definition of pentadactyl in English:

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pentadactyl

Pronunciation: /ˌpen(t)əˈdaktl/

adjective

Zoology
(Of a vertebrate limb) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods.
Example sentences
  • No single mutation can produce a pentadactyl limb of vertebrate type on a Drosophila.
  • These morphological facts show that the pentadactyl limb arose after the fin-limb transition and is the product of the canalization of the phenotype of the archaic limbs.
  • Others include pentadactyl feet and presence of a clavicle.

Derivatives

pentadactyly

noun
Example sentences
  • He pointed out, for example, that the developmental genetic explanation of the prevalence of pentadactyly assumes tetrapod monophyly.
  • This was a very surprising discovery because pentadactyly had been assumed to be the normal condition in ‘early’ tetrapods.

Origin

Early 19th century: from penta- 'five' + Greek daktulos 'finger'.

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