calyx

  1. Noun.  (anatomy) A cup-like structure in the mammalian kidney.
  2. Noun.  (botany) Tthe outermost whorl of flower parts, comprising the sepals, when it is not the same in appearance as the next such whorl (the corolla).
  3. Noun.  (zoology) The crown of a crinoid.

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