Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


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 ?
Out of twenty microcupules, nineteen were loaded with different dehydrated chromogenic-substrates in order to detect enzymatic activities, while number one cupule was designated as a negative control, without addition of substrate (Table I).
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.
Their leaves is simple, ovate form with dentate margines.The acorn is the fruit of oak trees and contain in a cupule [5].
The caryopsis of eastern gamagrass is encased in a cupule, a hard fruit case comprised of a modified rachis and hard glumes that surrounds the lemma and palea.