ratite /ratˈīt/ (ornithology)

1. Having a keel-less breastbone
2. Of the Ratitae /rä-tīˈtē/, flightless birds, such as the ostrich, rhea, emu, kiwi, etc

• bookishness
• bookishnesses
• bookkeeper
• bookkeepers
• bookkeeping
• bookkeepings
• bookland
• booklands
• book-lear
• book-learned
• book-learning
• bookless
• booklet
• booklets
• booklice
• booklore
• booklouse
• book lung
• book lungs
• bookmaker
• bookmakers
• bookmaking
• bookmakings
• bookman
• bookmark