Dictionary
col•u•mel•la
Pronunciation: (kol"yu-mel'u), [key]—
n.,
—pl. -mel•laePronunciation: (-mel'ē). [key]
Biol.
1. a. any of various small, columnlike structures of animals or plants; rod or axis.
b. Mycol.a small central column of sterile tissue within the sporangium of certain fungi, liverworts, and mosses.
2. a small bone in the ear of amphibians, reptiles, and birds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.