Definitions

from The Century Dictionary.

  • noun The posterior opening of the body-cavity of the lancelet, Branchiostoma, from which issues the water taken in at the mouth.

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

  • noun a hole in a lancelet through which water exits the body

Etymologies

Sorry, no etymologies found.

Examples

  • [1] Also located on the ventral side of the animal and a little more anterior than the anus, is the atriopore, which is used to release water from the amphioxus 'body.

    CreationWiki - Recent changes [en]

  • [3] Also located on the ventral side of the animal and a little more anterior than the anus, is the atriopore, which is used to release water from the amphioxus 'body.

    CreationWiki - Recent changes [en]

  • Mucus in the atrium traps food particles while the water exits out of the atriopore.

    CreationWiki - Recent changes [en]

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