Definitions
from The Century Dictionary.
- noun The oral orifice of an actinozoan.
- noun The pentagonal area in the center of the oral surface of an echinoderm which is occupied by the peristome and mouth.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) The mouth or anterior opening of a cœlenterate animal.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun zoology The
mouth oranterior opening of acoelenterate animal .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Ancient Greek ray + mouth.
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Examples
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