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

• ad hominem
• ADI
• adiabatic
• adiabatically
• Adiantum
• adiaphora
• adiaphorism
• adiaphorisms
• adiaphorist
• adiaphoristic
• adiaphorists
• adiaphoron
• adiaphorous
• adiathermancies
• adiathermancy
• adiathermanous
• adiathermic
• adieu
• adieus
• adieux
• Adi-Granth
• a dime a dozen
• a dim view
• ad inf.
• ad infinitum