pha·si·an·i·dae \-ˈanəˌdē\noun plural Usage: capitalized Etymology: New Latin Phasianus, type genus + -idae : a large family of gallinaceous birds including the Asiatic pheasants, domestic fowls, jungle fowls, argus pheasants, Old World partridges, often also the turkeys and guinea fowls, and sometimes the grouse — see coturnix