polyp Definition

polyp
noun

1. zool.
A sessile coelenterate with a more or less cylindrical body and a mouth surrounded by tentacles.
2. pathol.
A small abnormal but usually benign growth projecting from a mucous membrane, especially inside the nose.

Derivative: polypous
adj

Etymology: 16c: from Latin polypus, from Greek polypous, from pous foot.