Definitions

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

  • n. The mouthlike opening in a sponge, used to expel water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the main opening in a sponge from which water is expelled.

from the GNU version of the Collaborative International Dictionary of English

  • n. Same as oscule.

from The Century Dictionary and Cyclopedia

  • n. In sponges, a mouth or principal exhalent aperture; one of the orifices by which water is expelled. See cuts under Porifera and Spongilla.
  • n. One of the suckers, bothria, or fossettes on the head of a tapeworm, by means of which the animal attaches itself to its host.
  • n. A pax: apparently an erroneous abbreviation for osculatorium.

Etymologies

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

Latin ōsculum, diminutive of ōs, mouth; see ōs- in Indo-European roots.

Examples

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