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coelom Syllabification: coe·lom
Pronunciation: /ˈsēləm/
(also celom)

Definition of coelom in English:

noun (plural coeloms or coelomatasiˈlōmətə)

The body cavity in metazoans, located between the intestinal canal and the body wall.
Example sentences
  • In mellitids, the intestine is separated from the rest of the coelom by a well-defined wall of the peripheral ballast system.
  • The ophiuroid coelom is strongly reduced, particularly in comparison to other echinoderms.
  • The coelom extends into the rays, where the gonads are located.


Pronunciation: /ˈsēləˌmāt/
adjective& noun
Example sentences
  • Schizocoelous mesoderm formation in coelomate spiralians also makes use of individual cell immigration during its early phase.
  • They first evolved in the earlier Cambrian period, as part of the great radiation of coelomate animals that occurred at that time.
  • The genes have an arrangement relatable to those of coelomate metazoans, but not to those of secernentean nematodes.
Example sentences
  • The reproductive system is composed of a single saccular gonad in a coelomic pouch lying dorsal to the digestive system.
  • The soft parts in the axial canal of the stem consist of nerve cords, coelomic cavities, and associated organs which require more metabolic maintenance.
  • These characters would have facilitated volume changes of the coelomic cavity due to dorso-ventral rotation of the ‘synsacrum’ on the dorsal vertebrae.


Late 19th century: from Greek koilōma 'cavity'.

Definition of coelom in:
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