Definition, Meaning & Synonyms

coelom

noun
/ˈsi.ləm/
Definition
A coelom is a fluid-filled body cavity that is completely lined by tissue derived from mesoderm.
Examples
  • The coelom allows for greater organ mobility and development, making higher forms of life possible.

  • Invertebrates like annelids are classified as coelomates due to the presence of a coelom.

  • Some primitive organisms, such as jellyfish, lack a coelom and are therefore classified as acoelomates.

Meaning
In biology, a coelom refers to a major body cavity found in many animals, allowing for the development of complex organs and systems.
Synonyms
  • body cavity

  • coelomic cavity