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Noun: nodule  nójool
  1. A small node
     
  2. Small rounded wartlike protuberance on a plant
    - tubercle
     
  3. (mineralogy) a small rounded lump of mineral substance (usually harder than the surrounding rock or sediment)

Derived forms: nodules

See also: nodular

Type of: enation, hunk, lump, node, plant process

Encyclopedia: Nodule