Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The central cavity of a sponge, which opens to the outside by way of the osculum.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun zoology The large, central cavity of sponges

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek spongo-, sponge (from spongos) + –coel.]

Examples

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