| 释义 |
cupule|ˈkjuːpjuːl|
[ad. L. cūpula, dim. of cūpa cask, tub, (later) cup; cf. F. cupule (1798 Bulliard Dict. de Botan.). In botany the L. form ˈcupula is also used.]
1. Bot. A cup-shaped involucre consisting of bracts cohering by their bases, as in the oak, beech, and hazel. Also, a cup-like receptacle found in such fungi as Peziza.
1830Lindley Nat. Syst. Bot. 248 An external additional envelope called the cupula. 1845― Sch. Bot. vii. (1858) 117 The cupule..in common language, is called husk in the Filbert, Chesnut, and Beech, and cup in the Oak. 1859Todd Cycl. Anat. V. 228/2 The receptacles or cupules in which thecæ are produced.
2. Zool. A small cup-shaped organ, as the sucking-disc of the cuttle-fish and of certain aquatic beetles.
1826Kirby & Sp. Entomol. (1828) IV. 179 Caps or cupules surmounted by a tendon.
3. A small cup-shaped depression on a surface.
1883H. A. Newton in Encycl. Brit. XVI. 112 (Meteors) The surfaces very often have small cup-like cavities, sometimes several inches in diameter, sometimes like deep imprints in a plastic mass made by the ends of the fingers, and sometimes still smaller. These ‘cupules’..may be regarded as a characteristic of meteorites..The air pressed hard against it burns it unequally, forming cupules over its surface. |