rhizoid

rhizoid definition - medical

rhi·zoid (rīˈzoidˌ)

adjective
  1. Rootlike.
  2. Having irregular branching. Used of a form of bacterial growth.
noun
  1. A slender rootlike filament by which mosses, liverworts, and fern gametophytes attach to the substratum and absorb nourishment.
  2. A rootlike extension of the thallus of a fungus.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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