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Noun: cupule  kyoo-pyool
  1. Cup-shaped structure of hardened bracts at the base of an acorn
    "Squirrels discarded cupules on the forest floor";
    - acorn cup
     
  2. A sucker on the feet of certain flies
    "The fly's cupules allowed it to walk on the ceiling"

Derived forms: cupules

Type of: cup, sucker

Part of: acorn

Encyclopedia: Cupule