Noun Actinostome Definition and Examples
Definition:
1.noun
The mouth or oral opening of a radiate animal, such as a coelenterate or (now usually) an echinoderm.
((n.) The mouth or anterior opening of a coelenterate
animal.)
Origin:
Mid 19th century; earliest use found in Louis Agassiz (1807–1873), zoologist and geologist. From actino- + -stome.
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