Definition of tridactyl in English:


Syllabification: tri·dac·tyl
Pronunciation: /trīˈdaktl


  • (Of a vertebrate limb) having three toes or fingers.
    More example sentences
    • The foot is functionally tridactyl, with digits II - IV bound together and largely functioning as a single unit.
    • In the foot, the fifth toe was reduced to a single metatarsal, and the first toe was reduced and raised off the ground, leaving a functionally tridactyl foot.
    • Ornithopod prints are nearly always tridactyl with three stout and broadly spreading toes so that the resulting footprint has the outline of a trefoil.


early 19th century: from tri- 'three' + Greek daktulos 'finger'.

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