POLYPUS
polyp, polypus
(noun) a small vascular growth on the surface of a mucous membrane
Source: WordNet® 3.1
Etymology
Noun
polypus (plural polypi or polypuses)
A cardiac thrombus usually found post-mortem.
(archaic) An octopus.
Source: Wiktionary
Pol"y*pus, n.; pl. E. Polypuses, L. Polypi. Etym: [L. See Polyp.]
1. (Zoöl.)
Definition: Same as Polyp.
2. (Med.)
Definition: A tumor, usually with a narrow base, somewhat resembling a
pear, -- found in the nose, uterus, etc., and produced by hypertrophy
of some portion of the mucous membrane.
Source: Webster’s Unabridged Dictionary 1913 Edition