déhiscence — [ deisɑ̃s ] n. f. • 1798; de déhiscent ♦ Bot. Ouverture d organes déhiscents. Déhiscence de l anthère d une étamine. « C est l époque de la déhiscence, le fruit s ouvre et les graines sautent » (Duhamel). ⊗ CONTR. Indéhiscence. ● déhiscence nom… … Encyclopédie Universelle
Dehiscence — Déhiscence Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Biologie végétale La déhiscence est l ouverture spontanée d organes végétaux clos (anthères, fruits) suivant des zones définies, pour livrer… … Wikipédia en Français
Dehiscence — De*his cence, n. [Cf. F. d[ e]hiscence.] 1. The act of gaping. [1913 Webster] 2. (Biol.) A gaping or bursting open along a definite line of attachment or suture, without tearing, as in the opening of pods, or the bursting of capsules at maturity… … The Collaborative International Dictionary of English
dehiscence — 1828, from Mod.L. dehiscentia, from dehiscentem (nom. dehiscens), prp. of dehiscere to gape, open, split down (of the earth, etc.), from de (see DE (Cf. de )) + hiscere, inchoative of hiare to yawn (see YAWN (Cf. yawn)) … Etymology dictionary
dehiscence — [dēhis′əns] n. [L dehiscens, prp. of dehiscere: see DEHISCE] a splitting open, as of a pod or anther, along definite structural lines dehiscent adj … English World dictionary
Déhiscence — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Biologie végétale La déhiscence est l ouverture spontanée d organes végétaux clos (anthères, fruits) suivant des zones définies, pour livrer passage à… … Wikipédia en Français
dehiscence — noun Etymology: New Latin dehiscentia, from Latin dehiscent , dehiscens, present participle of dehiscere Date: 1819 an act or instance of dehiscing < pollen freed by dehiscence of the anther > • dehiscent adjective … New Collegiate Dictionary
dehiscence — A bursting open, splitting, or gaping along natural or sutured lines. [L. dehisco, to split apart or open] iris d. a defect of the eye characterized by multiple holes in the iris. root d. a loss of the buccal or lingual bone ove … Medical dictionary
dehiscence — dehisce ► VERB technical ▪ gape or burst open. DERIVATIVES dehiscence noun dehiscent adjective. ORIGIN Latin dehiscere, from hiscere begin to gape … English terms dictionary
Dehiscence (botany) — Dehiscence of the follicular fruit of milkweed (Asclepias syriaca) revealing seeds within. Dehiscence is the opening, at maturity, in a pre defined way, of a plant structure, such as a fruit, anther, or sporangium, to release its contents.… … Wikipedia
