1. A body cavity in certain invertebrate animals that is lined with mesoderm on only one side, lying between the intestine and body wall; a false coelom.
Usage: biology; zoology; also called pseudocoel

Examples

• Roundworms possess a pseudocoelom rather than a true coelom.
• The pseudocoelom provides space for internal organs in nematodes.
• Unlike organisms with a true coelom, those with a pseudocoelom have limited body cavity development.
• The pseudocoelom is lined with mesoderm on only one side, distinguishing it from a true coelom.
• Many parasitic worms rely on their pseudocoelom for nutrient distribution.