pseudocoelom

noun

pseu·​do·​coe·​lom ˌsü-də-ˈsē-ləm 

variants or pseudocoel

ˈsü-də-ˌsēl 

plural pseudocoeloms or pseudocoels

: a body cavity that is not a product of gastrulation and is not lined with a well-defined mesodermal membrane

Word History

First Known Use

1863, in the meaning defined above

Medical Definition

pseudocoelom

noun

pseu·​do·​coe·​lom ˌsüd-ə-​ˈsē-​ləm 

variants or pseudocoel also pseudocele or pseudocoele

ˈsüd-ō-ˌsēl 

: a body cavity (as in various worms) that is not the product of gastrulation and is not lined with a well-defined mesodermal membrane