carinate

Definitions of carinate

1. adjective

   having a ridge or shaped like a ridge or suggesting the keel of a ship
   “a carinate sepal”

   synonyms: carinated, keeled, ridged
2. noun

   birds having keeled breastbones for attachment of flight muscles
   synonyms: carinate bird, flying bird

   antonyms:

   ratite

   any of a group of flightless bird species with flat, unkeeled breastbones, such as ostriches, cassowaries, emus, and kiwis

   type of:

   bird

   warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings