( n. pl. )
An order of birds in which the wings are small, rudimentary, or absent, and the breastbone is destitute of a keel. The ostrich, emu, moa, and apteryx are examples.
( n. pl. )
An order of birds in which the wings are small, rudimentary, or absent, and the breastbone is destitute of a keel. The ostrich, emu, moa, and apteryx are examples.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012