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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Cupule \Cu"pule\ (k?"p?l), n. [See Cupola.]
      1. (Bot.) A cuplet or little cup, as of the acorn; the husk
         or bur of the filbert, chestnut, etc.
         [1913 Webster]
      2. (Zool.) A sucker or acetabulum.
         [1913 Webster]