Peridiniaceae
plural noun
Peri·din·i·a·ce·ae
| \ ˌperəˌdinēˈāsēˌē\
Definition of Peridiniaceae
: a family of unicellular algae (order Peridiniales) that was formerly nearly coextensive with the zoological family Peridiniidae but is now often restricted to Peridinium and a few closely related marine forms
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