/ Dictionary / Index M monocotyledon: Meaning and Definition of Find definitions for: mon•o•cot•y•le•don Pronunciation: (mon"u-kot"l-ēd'n), [key] — n. Bot. an angiospermous plant of the class Monocotyledones, characterized by producing seeds with one cotyledon and an endogenous manner of growth. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: monocotyledon (Thesaurus) monocot monocotyledonous Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language