Definition of Tentaculata
: a class of Ctenophora comprising forms with tentacles that are retractile into sheaths and that may be long and pinnate (as in members of the orders Cydippida and Platyctenea), small and unbranched (as in members of the order Cestida), or present only in the immature stage (as in members of the order Lobata)
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Origin and Etymology of tentaculata
New Latin, from neuter plural of tentaculatus tentaculate
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