Dictionary

nodule

noun nod·ule \ˈnä-(ˌ)jül\

: a small lump on a part of the body or on the root of a plant

Full Definition of NODULE

:  a small mass of rounded or irregular shape: as
a :  a small rounded lump of a mineral or mineral aggregate
b :  a swelling on a leguminous root that contains symbiotic bacteria
c :  a small abnormal knobby bodily protuberance (as a tumorous growth or a calcification near an arthritic joint)
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Examples of NODULE

  1. The examination revealed a nodule on his lung.
  2. <a nodule on the leaf indicated that a worm had laid eggs there>

Origin of NODULE

Middle English, from Latin nodulus, diminutive of nodus
First Known Use: 15th century
NODULES Defined for Kids

nodule

noun nod·ule \ˈnä-jül\

Definition of NODULE for Kids

:  a small roundish lump or mass
Medical Dictionary

nodule

noun nod·ule \ˈnäj-(ˌ)ü(ə)l\

Medical Definition of NODULE

:  a small mass of rounded or irregular shape: as a :  a small abnormal knobby bodily protuberance (as a tumorous growth or a calcification near an arthritic joint) b :  the nodulus of the cerebellum

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