Noun | 1. | ![]() podicipitiform seabird - aquatic birds related to the loons genus Podiceps, Podiceps - type genus of the Podicipedidae: grebes great crested grebe, Podiceps cristatus - large Old World grebe with black ear tufts Podiceps grisegena, red-necked grebe - large stocky grebe of circumpolar regions having a dark neck black-necked grebe, eared grebe, Podiceps nigricollis - small grebe with yellow ear tufts and a black neck; found in Eurasia and southern Africa as well as western United States pied-billed grebe, Podilymbus podiceps - American grebe having a black-banded whitish bill |