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spongocoel

American  
[spong-goh-seel] / ˈspɒŋ goʊˌsil /

noun

Zoology.
  1. the central cavity in the body of a sponge.


Etymology

Origin of spongocoel

< Greek spongó ( s ), variant of spongiā́ sponge + English -coel, variant of -coele