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Definition of "rhizoid" [rhi•zoid]

  • A slender rootlike filament by which mosses, liverworts, and fern gametophytes attach to the substratum and absorb nourishment. (noun)
  • A rootlike extension of the thallus of a fungus. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "rhizoid" in a sentence
  • ""We were really excited when we saw how similar the ultrastructure of our liverwort rhizoid walls was to images of Prototaxites tubes published in 1976 by Rudy Schmid," Graham said."
  • "B, Part of a developed protonema. h, Creeping filament with brown walls from which the filaments of chlorophyll-containing cells (b) arise; k, young moss-plant; w, its first rhizoid.]"
  • "-- Types of colonies: a, Filamentous; b, rhizoid; c, conglomerate; d, toruloid.] (C) ~Surface Elevation."