acotyledon [ā΄kät΄ə lēd′'n]
any plant lacking seed leaves (cotyledons), as dodder

English World dictionary. . 2014.

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  • Acotyledon — is used to refer to seed plants or spermatophytes that lack cotyledons, such as orchids and dodder. Orchid seeds are tiny with underdeveloped embryos. They depend on mycorrhizal fungi for their early nutrition so are myco heterotrophs at that… …   Wikipedia

  • acotylédon — ⇒ACOTYLÉDON, ONE, adj. et subst. BOT., vx, emploi adj. 1. ,,Privé de cotylédons. (NYSTEN 1814 20). 2. ,,Dont les cotylédons ne sont pas visibles, dans l expr. plantes acotylédones ou inembryonnées. (NYSTEN 1814 20) : • 1. Les champignons, les… …   Encyclopédie Universelle

  • Acotyledon — A*cot y*le don (#; 277), n. [Gr. a priv. + ? anything cup shaped. See {Cotyledon}.] (Bot.) A plant which has no cotyledons, as the dodder and all flowerless plants. [1913 Webster] …   The Collaborative International Dictionary of English

  • acotyledon — acotyledonous /ay kot l eed n euhs, ay kot /, adj. /ay kot l eed n, ay kot /, n. a plant without cotyledons, therefore one belonging to a group lower than the seed plants. [1810 20; A 6 + COTYLEDON] * * * …   Universalium

  • acotyledon — noun /ˈeɪ.kɔt.l̩.iːdˌn̩/ A plant that has no cotyledons, as the dodder and all flowerless plants …   Wiktionary

  • acotyledon — [əˌkɒtɪ li:d(ə)n] noun a plant that has no distinct seed leaves. Derivatives acotyledonous adjective Origin C18: from mod. L. plural acotyledones (see a 1, cotyledon) …   English new terms dictionary

  • acotyledon — acot·y·le·don …   English syllables

  • acotyledon — /əkɒtəˈlidən/ (say uhkotuh leeduhn) noun a plant without cotyledons. {a 6 + cotyledon} –acotyledonous /əkɒtəˈlidənəs/ (say uhkotuh leeduhnuhs), adjective …  

  • acotyledon —   n. plant without differentiated seed lobes.    ♦ acotyledonous, a …   Dictionary of difficult words

  • acotyledon — n. a plant with no distinct seed leaves. Derivatives: acotyledonous adj. Etymology: mod.L acotyledones pl. (as A (1), COTYLEDON) …   Useful english dictionary

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