Mon`o*cot`y*le"don (?), n. [Mono- + cotyledon: cf. F. monocotyl'edone.] Bot.
A plant with only one cotyledon, or seed lobe.
⇒ The plural, monocotyledons, is used as the name of a large class of plants, and is generally understood to be equivalent to the term endogens.
© Webster 1913.