Proparia
plural noun
Pro·par·ia
prōˈpa(a)rēə
: an order of trilobites in which the posterior branch of the facial suture cuts the lateral margin of the cephalon
proparian noun or adjective
-ēən
Word History
Etymology
New Latin, from pro- entry 1 + Greek pareia cheek, cheekpiece of a helmet, probably from para- + -eia (akin to Greek ous ear)