capitulum

  1. Noun.  (botany) A densely clustered inflorescence composed of a large number of individual florets arising from a platform-like base.
  2. Noun.  (arachnology) The head-like mouthpart apparatus of a tick, including the palpi, mandibles, and hypostome.
  3. Noun.  (anatomy) A small protuberance on a bone which articulates into another bone to form a ball-and-socket joint.
  4. Noun.  (entomology, obsolete) The enlarged end of a proboscis..

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This entry was last updated on RefTopia from its source on 3/20/2012.