nodule

Noun
  1. A small node (synset 105272537)
    is a type of: node - any bulge or swelling of an anatomical structure or part
  2. Small rounded wartlike protuberance on a plant (synset 113109749)
    is a type of: enation, plant process - a natural projection or outgrowth from a plant body or organ
    same as: tubercle
  3. (mineralogy) a small rounded lump of mineral substance (usually harder than the surrounding rock or sediment) (synset 109394852)
    referred to in: mineralogy - the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them
    is a type of: hunk, lump - a large piece of something without definite shape
    subtypes: geode - (mineralogy) a hollow rock or nodule with the cavity usually lined with crystals

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