What is the Latin word for polypus?

The usual Latin words for “polypus” are pō̆lypus, ozaena. The right choice depends on the sense; see the distinctions below.

English → Latin

“polypus” in Latin

pō̆lypusoctopus; cuttlefish; nasal tumor ozaenaA kind of polypus; A disease of the nose

The English word polypus itself goes back to Latin pō̆lypus.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

polypus

A kind of zoophyte, polypus, -odis (Plaut.); sepia octopodia (Linn.); ozaena (a kind of polypus; Plin.).

An ulcer of the nose, polypus (Hor., Gell.), ozaena (Plin.).

Quick answer

What is the Latin word for polypus?: The usual Latin words for “polypus” are pō̆lypus, ozaena. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.