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Webster 1913 Edition

(k?′p?l)

Noun.

[See

(Bot.)

A cuplet or little cup, as of the acorn; the husk or bur of the filbert, chestnut, etc.

(Zool.)

A sucker or acetabulum.

cupule ‎(plural cupules)

Any small structure shaped like a cup, such as at the base of an acorn, or the sucker on the feet of some flies

small structure shaped like a cup