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单词 nodule
释义

nodule

[ noj-ool ]
/ ˈnɒdʒ ul /
SEE SYNONYMS FOR nodule ON THESAURUS.COM

noun

a small node, knot, or knob.
a small, rounded mass or lump.
Botany. a tubercle.

Origin of nodule

1590–1600; <Latin nōdulus a little knot, equivalent to nōd(us) node + -ulus-ule

Words nearby nodule

nodular fasciitis, nodular leprosy, nodular lymphoma, nodular nonsuppurative panniculitis, nodulation, nodule, nodule of semilunar valve, nodulous, nodulus, nodus, nodus lymphaticus
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for nodule

British Dictionary definitions for nodule

nodule
/ (ˈnɒdjuːl) /

noun

a small knot, lump, or node
Also called: root nodule any of the knoblike outgrowths on the roots of clover and many other legumes: contain bacteria involved in nitrogen fixation
anatomy any small node or knoblike protuberance
a small rounded lump of rock or mineral substance, esp in a matrix of different rock material

Derived forms of nodule

nodular, nodulose or nodulous, adjective

Word Origin for nodule

C17: from Latin nōdulus, from nōdus knot
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

Medical definitions for nodule

nodule
[ nŏjōōl ]

n.

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

Other words from nodule

nodu•lar (nŏjə-lər) null null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for nodule

nodule
[ nŏjōōl ]

A small, usually hard mass of tissue in the body.
A small, knoblike outgrowth found on the roots of many legumes, such as alfalfa, beans, and peas. Nodules grow after the roots have been infected with nitrogen-fixing bacteria of the genus Rhizobium. See more at legume.
A small, rounded lump of a mineral or mixture of minerals that is distinct from and usually harder than the surrounding rock or sediment. Nodules often form by replacement of a small part of the rocks in which they form.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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