any of a family (Numididae) of gallinaceous African birds with a featherless head, rounded body, and dark feathers spotted with white, esp. the widespread domesticated species (Numida meleagris)
orig. imported from Guinea
See guinea fowl in American Heritage Dictionary 4
Any of several pheasantlike birds of the family Numididae native to Africa, especially a widely domesticated species (Numida meleagris) having blackish plumage marked with many small white spots. Also called guinea hen.