[ soo-doh-seel ]
/ ˈsu doʊˌsil /

noun Zoology.

the body cavity of certain invertebrate metazoan animals between the body wall and the intestine, which is not lined with a mesodermal epithelium.
Also pseu·do·cele, pseu·do·coele, pseu·do·coe·lom, pseu·do·ce·lom [soo-doh-see-luh m] /ˌsu doʊˈsi ləm/.

Origin of pseudocoel

1885–90; pseudo- + -coel Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pseudocoel