ˌsīrə̇ˈnȯidēˌī noun plural
also si·ren·oi·dea -ēə
Usage: capitalized
Etymology: New Latin, from Latin siren + New Latin -oidei, -oidea
in some classifications : a group of lungfishes containing the genera Neoceratodus and Lepidosiren and some extinct forms from the Mesozoic