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thallus definition

thal·lus (t̸hal′əs)

noun pl. thalli thal′li′ (-ī′) or thalluses thal′·luses

the nonvascular plant body of a thallophyte, showing no clear distinction of roots, stem, or leaves

Etymology: ModL < Gr thallos, young shoot: see Thalia

Related Forms:

  • thalloid thal′·loid′ (-o̵id′) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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