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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use cupule in a sentence
Among the specimens of the last class, one sort, the cupule, is extremely widespread.
Bracts forming a fleshy or hard cupule which envelops the one to several fruits.
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
In the Chestnut the cupule forms the bur; in the Hazel, a leafy husk.The Elements of Botany | Asa Gray
Here the involucre, in the form of a cup at the base, is called the cupule.The Elements of Botany | Asa Gray
British Dictionary definitions for cupule
biology a cup-shaped part or structure, such as the cup around the base of an acorn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012