elephant bird noun1 •Any of the very large extinct flightless birds that make up the genera Aepyornis and Mullerornis within family Aepyornithidae, and lived in Madagascar until the 17th or 18th century; especially †Aepyornis maximus.The fossil record is also poor for moa and the aepyornid elephant birds, in that both are mainly known from remains that date from historical times. — 2002 formselephant birds
