Real Dictionary

lammergeier in American English
a very large Old World vulture (Gypaetus barbatus) with grayish-black plumage streaked with white and a tuft of bristles over the nostrils and under the bill; bearded vulture
noun: the largest Eurasian bird of prey, Gypaëtus barbatus, ranging in the mountains from southern Europe to China, having a wingspread of 9 to 10 ft. (2.7 to 3 m) and black feathers hanging from below the bill like a mustache

lammergeier in British English
noun: a rare vulture, Gypaetus barbatus, of S Europe, Africa, and Asia, with dark wings, a pale breast, and black feathers around the bill: family Accipitridae (hawks)