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rhizoid

[rahy-zoid] /ˈraɪ zɔɪd/
adjective
1.
noun
2.
(in mosses, ferns, etc.) one of the rootlike filaments by which the plant is attached to the substratum.
Origin
1855-1860
1855-60; rhiz- + -oid
Related forms
rhizoidal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for rhizoidal

rhizoid

/ˈraɪzɔɪd/
noun
1.
any of various slender hairlike structures that function as roots in the gametophyte generation of mosses, ferns, and related plants
Derived Forms
rhizoidal, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for rhizoidal

rhizoid

adj.

"root-like," 1858, from Greek rhiza "root," literal and figurative (see rhizome) + -oid. As a noun from 1875.

Online Etymology Dictionary, © 2010 Douglas Harper
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rhizoidal in Medicine

rhizoid rhi·zoid (rī'zoid')
adj.

  1. Rootlike.

  2. Having rrregular branching. Used of a form of bacterial growth.

n.
  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® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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rhizoidal in Science
rhizoid
  (rī'zoid')   
  1. A slender, rootlike filament by which mosses, liverworts, and the gametophytes of ferns attach themselves to the material in which they grow.

  2. A branching, rootlike extension by which algae and fungi absorb water and nutrients.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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