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soredia

 - 2 dictionary results

so⋅re⋅di⋅um

  [suh-ree-dee-uhm]
Use soredia in a Sentence
–noun, plural -di⋅a  [-dee-uh] . (in a lichen)
a group of algal cells surrounded by hyphal tissue, occurring on the surface of the thallus and functioning in vegetative reproduction.
Also called brood bud, hologonidium.

Origin:
1820–30; < NL, dim. of Gk sōrós a heap

Related forms:
so⋅re⋅di⋅ate  [suh-ree-dee-it, -eyt] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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so·re·di·um   (sə-rē'dē-əm)   
n.   pl. so·re·di·a (-dē-ə)
A specialized asexual reproductive unit of lichens consisting of a mass of algal cells surrounded by fungal hyphae.

[New Latin sōrēdium, diminutive of Greek sōros, heap; see sorus.]
so·re'di·al (-dē-əl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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