monocotyledonous

/'mɔnou,kɔti'li:dənəs/

Thân thiện

A botanist points out the parallel veins on a monocotyledonous leaf.

Definition

1. Adjective:
   • (Botany) Having a single cotyledon in the seed: Describes a flowering plant whose embryo (the young plant within the seed) possesses only one seed leaf, or cotyledon. This is a primary characteristic distinguishing one of the two major groups of angiosperms (flowering plants).

Usage Examples

• Adjective:
  • Grasses, lilies, and orchids are all monocotyledonous plants.
  • The botanist identified the specimen as monocotyledonous based on its single seed leaf.
  • A key feature of monocotyledonous seeds is the presence of only one cotyledon.

Advanced Usage

• Scientific Classification: The term is used in formal botanical taxonomy and description. It is often contrasted with "dicotyledonous" (having two cotyledons).
  • The class Liliopsida comprises monocotyledonous flowering plants.

Variants and Related Words

• Monocotyledon (noun): A plant that has a single cotyledon; a member of the group Monocotyledonae or Liliopsida.
  • Palms are typical monocotyledons.
• Monocot (noun, informal): A common abbreviation for monocotyledon.
  • Botany students must learn to distinguish between monocots and dicots.

Synonyms

• Monocot (when used as an adjective in informal botanical contexts).
• One-seed-leafed (descriptive, non-technical).

Antonyms

• Dicotyledonous (adj.): Having two cotyledons in the seed.
  • Rose and bean plants are dicotyledonous.

Học thuật

Adjective

1. (of a flowering plant) having a single cotyledon in the seed as in grasses and lilies