plural noun Sed·en·tar·ia \ˌsedən‧ˈta(a)rēə\

Definition of Sedentaria

in some classifications

  1. :  a division of Polychaeta comprising sedentary usually tube-dwelling worms with reduced parapodia and sense organs and typically with highly developed filamentous anterior respiratory organs or gills — compare errantia, sabellaria

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Origin and Etymology of sedentaria

New Latin, from Latin, neuter plural of sedentarius sedentary

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