Definition

1. Adjective:
   • Consisting of many cells: Describes an organism or structure that is composed of more than one cell, where cells are typically organized into tissues and organs. This is a fundamental characteristic distinguishing complex life forms like animals and plants from single-celled organisms.

Usage

• The term "multicellular" is primarily used in biological and scientific contexts to classify and describe organisms.
• It is used attributively (before a noun) or predicatively (after a linking verb).
• It describes the structural organization of an entity.

Examples

• Attributive use (before a noun):
  • All animals and plants are multicellular organisms.
  • The evolution of multicellular life was a major step in biological history.
• Predicative use (after a linking verb):
  • Fungi are multicellular.
  • This particular alga can be either unicellular or multicellular, depending on environmental conditions.

Advanced Usage

• "multicellularity" (noun): The condition or quality of being multicellular.
  • The evolution of multicellularity allowed for greater size and specialization.
• Used in contrast to "unicellular" (single-celled) and "acellular" (non-cellular).
  • The transition from unicellular to multicellular forms involved new mechanisms of cell communication.

Variants and Related Words

• Multicellularity (n): The state of being multicellular.
• Unicellular (adj): Consisting of a single cell (antonym).
• Cellular (adj): Relating to or consisting of cells (broader term).

Synonyms

• Many-celled: A simpler, more descriptive synonym.
• Complex (in a biological context): Often implies multicellular organization, though less precise.

Antonyms

• Unicellular: Having or consisting of a single cell.
• Acellular: Not composed of cells or lacking a cellular structure.

Adjective

1. consisting of many cells
   • multicellular organisms