6 letters · 6 points in Scrabble
noun flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds
originFrom Latin ratis (“raft”) + -ite; ratites (unlike other birds) lack a keel on their sternum, and rafts are vessels that lack keels.
Etymology from Wiktionary, CC BY-SA 3.0