pulvinus
noun (plural pulvini) Etymology: New Latin, from Latin, cushion Date: circa 1857 a swelling at the base of a petiole or petiolule

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Pulvīnus — Pulvīnus, 1) (röm. Ant.), Kissen, Polster, welche auf hölzerne Gestelle gelegt den Tischgästen zur Bequemlichkeit dienten; 2) (Bot.), der zwischen Streifen (Striae) hervorragende Theil; 3) kleine Hervorragung, welche man öfters unter der Narbe… …   Pierer's Universal-Lexikon

  • Pulvīnus — (lat., »Kissen«), Blattkissen, s. Blattnarbe …   Meyers Großes Konversations-Lexikon

  • pulvinus — [pul΄vī′nəs] n. pl. pulvini [pul΄vī′nī΄] [ModL < L, pillow, elevation] Bot. an enlarged area at the base of a petiole, at a node, or at the base of a panicled branch, producing movement by growth or swelling …   English World dictionary

  • Pulvinus — Querschnitt durch einen Pulvinus im Blattstiel eines Keimblatts von Oxalis rosea, aus: Charles Darwin (1880): The Power of Movement in Plants. p Blattstiel f Leitbündel b Blattansatz Als Pulvini (Einzahl: Pulvinus) werden verdickte Stellen in den …   Deutsch Wikipedia

  • Pulvinus — A pulvinus (pl. pulvini ) is a joint like thickening at the base of a plant leaf or leaflet that facilitates nyctinastic and thigmonastic movements. It consists of a core of vascular tissue within a flexible, bulky cylinder of thin walled… …   Wikipedia

  • pulvinus — /pul vuy neuhs/, n., pl. pulvini / nuy/. 1. Bot. a cushionlike swelling at the base of a leaf or leaflet, at the point of junction with the axis. 2. Archit. pulvinar (def. 2). [1855 60; < L pulvinus cushion] * * * …   Universalium

  • pulvinus — pul•vi•nus [[t]pʌlˈvaɪ nəs[/t]] n. pl. ni ( nī). bot a cushionlike swelling at the base of a leaf or leaflet, at the point of junction with the stem • Etymology: 1855–60; < L pulvīnus cushion …   From formal English to slang

  • pulvinus — noun A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet …   Wiktionary

  • pulvinus — pul·vi·nus …   English syllables

  • pulvinus — /pʌlˈvaɪnəs/ (say pul vuynuhs) noun (plural pulvini /pʌlˈvaɪnaɪ/ (say pul vuynuy)) a cushion like swelling at the base of a leaf or leaflet, at the point of junction with the axis. {Latin: cushion} …   Australian English dictionary

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