- a cup-shaped whorl of hardened, cohering bracts, as in the acorn.
- a cup-shaped outgrowth of the thallus of certain liverworts.
- the apothecium of a cup fungus.
- Zoology. a small cup-shaped sucker or similar organ or part.
Origin of cupule
1820–30; < New Latin cūpula, Late Latin: small tub; see cupola
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cupule
In the Chestnut the cupule forms the bur; in the Hazel, a leafy husk.
Here the involucre, in the form of a cup at the base, is called the Cupule.
The latter are in clusters of a few only, and each separate flower is enclosed in a cupule of overlapping scales.Field and Woodland Plants
William S. Furneaux
These cylindrical muscles with their cupule and tendon look like so many syringes.An Introduction to Entomology: Vol. IV (of 4)
Among the specimens of the last class, one sort, the cupule, is extremely widespread.
- biology a cup-shaped part or structure, such as the cup around the base of an acorn
C19: from Late Latin cūpula; see cupola