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NODULE

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nod⋅ule

  [noj-ool]
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–noun
1. a small node, knot, or knob.
2. a small, rounded mass or lump.
3. Botany. a tubercle.
Origin:
1590–1600; < L nōdulus a little knot, equiv. to nōd(us) node + -ulus -ule
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Nodule on lung
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nod·ule   (nŏj'ōōl)   
n.  

  1. A small knotlike protuberance.

  2. Anatomy A small mass of tissue or aggregation of cells.

  3. Botany A small knoblike outgrowth, as those found on the roots of many leguminous plants.

  4. Mineralogy A small rounded lump of a mineral or mixture of minerals, usually harder than the surrounding rock or sediment.


[Middle English, from Latin nōdulus, diminutive of nōdus, knot; see ned- in Indo-European roots.]
nod'u·lar (nŏj'ə-lər), nod'u·lose' (-lōs'), nod'u·lous (-ləs) 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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Word Origin & History

nodule 
1600, from L. nodulus "small knot," dim. of nodus "knot."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: nod·ule
Pronunciation: 'näj-(")ü(&)l
Function: noun
: a small mass of rounded or irregular shape: as a : asmall abnormal knobby bodily protuberance (as a tumorous growth or a calcification near an arthritic joint) b : the nodulus of the cerebellum
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

nodule nod·ule (nŏj'&oomacr;l)
n.

  1. A small node.

  2. A small mass of tissue or aggregation of cells.

nod'u·lar (nŏj'ə-lər) or nod'u·lose' (-lōs') or nod'u·lous (-ləs) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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