ˌnirēˌidəˈfȯrmēə, nə̇ˌrēəd- noun plural
Usage: capitalized
Etymology: New Latin, from Nereid-, Nereis, genus of polychaete worms + -iformia (from Latin, neuter plural of -iformis -iform)
in some classifications : a division of polychaete worms nearly equivalent to Errantia