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monocotyledon

[mon-uh-kot-l-eed-n]
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noun Botany.
  1. an angiospermous plant of the class Monocotyledones, characterized by producing seeds with one cotyledon and an endogenous manner of growth.
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Compare dicotyledon.

Origin of monocotyledon

From New Latin, dating back to 1720–30; see origin at mono-, cotyledon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for monocotyledon

monocotyledon

noun
  1. any flowering plant of the class Monocotyledonae, having a single embryonic seed leaf, leaves with parallel veins, and flowers with parts in threes: includes grasses, lilies, palms, and orchidsOften shortened to: monocot Compare dicotyledon
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Derived Formsmonocotyledonous, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
monocotyledon in Science

monocotyledon

[mŏn′ə-kŏt′l-ēd′n]
  1. Any of a class of angiosperm plants having a single cotyledon in the seed. Monocotyledons have leaves with parallel veins, flower parts in multiples of three, and fibrous root systems. Their primary vascular bundles are scattered throughout the stem, not arranged in a ring as in eudicotyledons. Grasses, palms, lilies, irises, and orchids are monocotyledons. See more at leaf. Compare eudicotyledon.
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Related formsmonocotyledonous adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.