单词 | dicotyledon |
释义 | dicotyledon[ dahy-kot-l-eed-n, dahy-kot-l- ] / daɪˌkɒt lˈid n, ˌdaɪ kɒt l- / noun Botany.any angiospermous plant of the class (or subclass) Dicotyledoneae, producing seeds with two cotyledons and having an exogenous manner of growth. Compare monocotyledon. Origin of dicotyledonFirst recorded in 1720–30, dicotyledon is from the New Latin word Dicotyledones a pre-Linnean grouping of such plants. See di-1, cotyledon Words nearby dicotyledondicloxacillin sodium, dicofol, Diconal, dicoria, dicot, dicotyledon, dicotyledonous, dicoumarin, dicrotic, dicrotic notch, dicrotic pulse Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for dicotyledon
British Dictionary definitions for dicotyledondicotyledon / (daɪˌkɒtɪˈliːdən, ˌdaɪkɒt-) / nounany flowering plant of the class Dicotyledonae, normally having two embryonic seed leaves and leaves with netlike veins. The group includes many herbaceous plants and most families of trees and shrubs primitive dicotyledon . any living relative of early angiosperms that branched off before the evolution of monocotyledons and eudicotyledons. The group comprises about 5 per cent of the world's plants Often shortened to: dicot Compare monocotyledon Derived forms of dicotyledondicotyledonous, adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for dicotyledondicotyledon [ dī′kŏt′l-ēd′n ] An angiosperm that is not a monocotyledon, having two cotyledons in the seed. The term dicotyledon serves as a convenient label for the eudicotyledons, the magnoliids, and a varied group of other angiosperms, but it does not correspond to a single taxonomic group. Compare monocotyledon. See more at eudicotyledon leaf magnoliid. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
随便看 |
英语词典包含192737条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。