n.
- A slender rootlike filament by which mosses, liverworts, and fern gametophytes attach to the substratum and absorb nourishment.
- A rootlike extension of the thallus of a fungus.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.