A large bird, of the genus Casuarius, found in the east Indies. It is smaller and stouter than the ostrich. Its head is armed with a kind of helmet of horny substance, consisting of plates overlapping each other, and it has a group of long sharp spines on each wing which are used as defensive organs. It is a shy bird, and runs with great rapidity. Other species inhabit New Guinea, Australia, etc.
- Any of several large flightless birds of the genus Casuarius of Australia, New Guinea, and adjacent areas, having a large bony projection on the top of the head and brightly colored wattles.