'Polyactinia' definitions:
Definition of '
Polyactinia
'
From:
GCIDE
Polyactinia \Pol`y*ac*tin"i*a\, n. pl. [NL. See
Poly-
, and
Actinia
.] (Zool.) An old name for those Anthozoa which, like the actinias, have numerous simple tentacles. [1913 Webster]
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