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A small cup-shaped structure or organ, such as the cup at the base of an acorn or one of the suckers on the feet of certain flies.

[Late Latin cūpula, little cask, diminutive of Latin cūpa, tub; see cupola.]


(Biology) biology a cup-shaped part or structure, such as the cup around the base of an acorn
[C19: from Late Latin cūpula; see cupola]


(ˈkyu pyul)

1. a cup-shaped whorl of hardened, cohering bracts, as in the acorn.
2. a small cup-shaped sucker or similar organ or part.
[1820–30; < New Latin cūpula, Late Latin: small tub]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cupule - cup-shaped structure of hardened bracts at the base of an acorncupule - cup-shaped structure of hardened bracts at the base of an acorn
acorn - fruit of the oak tree: a smooth thin-walled nut in a woody cup-shaped base
cup - cup-shaped plant organ
2.cupule - a sucker on the feet of certain flies
sucker - an organ specialized for sucking nourishment or for adhering to objects by suction


n (Bot) → Becher m, → Cupula f (spec)
References in periodicals archive ?
2014): A scientific study of a new cupule site in Jabiluka, Western Arnhem Land.
The flowers are yellow to green--yellow, actinodromous, with six subequal tepals, nine bilocular anthers and unicarpelar, unilocular, minutely pubescent ovary, sunk into the floral tube in a hypanthium that develops with fruit ripening forming a turbinated cupule, often 4-to 5-parted, red-colored, with floral remains in the margin.
Molecular phylogenetics and cupule evolution in Fagaceae as inferred from nuclear CRABS CLAW sequences.
Devil's fig, turkey berry, wild eggplant (English) Geraloh Castanopsis- Fruits Slice open (Temiar); megacarpa cupule to Berangan reveal brownish (Malay) nut.
Tests for citrate (CIT), acetoin production (VP) and gelatinase utilization (GEL) were performed by filling both the well and cupule of the test strips.
Some chestnut cultivars are particularly prone to erratic fruit set showing very low or even empty cupule for unknown reasons.
The acorn is the fruit of oak trees and contain in a cupule [5].
2001) hypothesized that the cupule restricts germination and its integrity must be reduced before germination will occur.
They are some of the most significant resources we have, along with other rock features, such as cupule sites used for grinding.
During the summer, you can forecast the upcoming acorn crop simply by glassing the uppermost branches for nuts seated in or surrounded by a hard woody cupule.