Question

what do you mean by pseudocoelomic?

Answer 1

The pseudocoelom pseudo means false and coelom means cavity so it  is a fluid-filled body cavity lying inside the external body wall of the nematode that bathes the internal organs, including the alimentary system and the reproductive system ..
OR
seudocoelom A second body cavity (the first being the gut) which occupies a space between the mesoderm of the body wall and the endoderm of the gut. There are no mesenteriessuspending the internal organs and no muscular layers around the gut; thus in no pseudocoelomate animal does muscular peristalsis move food through the alimentary canal.

Answer 2

the pseudocoelom is a fluid,-filled body cavity lying inside the external body wall of the nematode that bathes the internal organs, including the alimentary system reproduction system.