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Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for pollex in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)


pollex (plural pollices)

  1. The thumb; the first, or preaxial, digit of the forelimb, corresponding to the hallux in the hind limb. In birds, the pollex is the joint which bears the alula or bastard wing.

Derived terms[edit]

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Perhaps cognate with Proto-Slavic *palьcь, but contaminated with Latin polleō (hence pollex not *pōlex).



pollex m (genitive pollicis); third declension

  1. thumb
  2. a unit of distance, equivalent to approximately 24.6 mm; one uncia (see also: Ancient Roman units of measurement)


Third declension.

Case Singular Plural
nominative pollex pollicēs
genitive pollicis pollicum
dative pollicī pollicibus
accusative pollicem pollicēs
ablative pollice pollicibus
vocative pollex pollicēs

Derived terms[edit]



  • pollex in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • pollex in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • du Cange, Charles (1883), “pollex”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • pollex in William Smith, editor (1848) A Dictionary of Greek Biography and Mythology, London: John Murray