monocotyledon[män′ō kät′ə lēd′'n, män′ə-]
Bot. any of a class (Liliopsida) of angiosperms, including lilies, orchids, and grasses, having an embryo containing only one cotyledon, and characterized by parallel-veined leaves, flower parts in multiples of three, and no secondary growth in stems and roots
often clipped to monocot
Any of various flowering plants, such as grasses, lilies, and palms, having a single cotyledon in the seed, and usually a combination of other characteristics, typically leaves with parallel veins, a lack of secondary growth, and flower parts in multiples of three.
- (botany) Any plant whose seedlings typically have one cotyledon (seed leaf) (in contrast to the two cotyledons typical of dicots), thereby belonging to the taxonomic monocots, formerly variously known as Monocotyledones, Monocotyledonae, or Liliopsida, a class in the Angiospermae, the flowering plants. This group include the grasses, lilies, orchids and palms.
- Outside definitions or strict taxonomic usage, monocot is the preferred form.