A triploblastic organism
which has an internal, fluid-filled body cavity
which originated from the mesoderm
development. This cavity surrounds the gut
, may contain various other organs, and is called a coelom
. It differs from the pseudocoel
s of the pseudocoelomate
s because it is not derived from the blastocoel
. The term is used to classify multicellular
animals by developmental pattern.
From the BioTech Dictionary at http://biotech.icmb.utexas.edu/. For further information see the BioTech homenode.