splanch·no·coele
variants:
or splanchnocoel \
ˈsplaŋknəˌsēl
\
plural -s
Definition of splanchnocoele
1
: the embryonic body cavity when formed by splitting of the mesoderm into somatopleuric and splanchnopleuric layers
2
: a visceral cavity especially of a brachiopod
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Merriam-Webster unabridged
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