Definition of pentadactyl in English:

pentadactyl

adjective

Zoology
  • (of a vertebrate limb) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods.

    • ‘No single mutation can produce a pentadactyl limb of vertebrate type on a Drosophila.’
    • ‘Others include pentadactyl feet and presence of a clavicle.’
    • ‘The pentadactyl pattern is a repeated design because it was available.’
    • ‘First, it's quite easy to ‘imagine’ a vertebrate without the pentadactyl pattern.’
    • ‘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.’

Origin

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

Pronunciation

pentadactyl

/ˌpɛn(t)əˈdæktl//ˌpen(t)əˈdaktl/