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Webster's Dictionary (1865)

Cŭ'pŭle, n.

noun

n. [Lat. cupula. See CU-POLA.]

  1. (Bot.) A cuplet or little cup, as of the acorn; the husk of the filbert, chestnut, and the like. London.
  2. (Nat. Hist.) A fleshy, concave disk, or little cup, used by the cuttlefish and some other animals for clinging or grasping; it is applied flat to a surface, and adheres from atmospheric pressure; an acetabulum. Dana.