Definitions

1. noun

A fluid-filled cavity or space in an embryo, typically found between the archenteron and the body wall.

“The exocoelom of the developing embryo is crucial for its growth and development.”

2. noun

A cavity or space in the body, typically found in certain invertebrates, that is used for circulation or respiration.

“The exocoelom in this species serves as a vital respiratory system.”