stomach pocketn.Zoology in Medusæ, a cavity serving as a stomach.
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the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Acalepha > member of (jelly-fish) > parts of > cavity serving as stomach
stomach-pouch1854
stomach pocket1885
1885 W. K. Brooks in Mem. Boston Soc. Nat. Hist. III. 361 The Narcomedusæ... Radial canals absent, or present as flat radial stomach pockets.