carinate

Adjective

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

Noun

• birds having keeled breastbones for attachment of flight muscles

Related words

• Synonyms: 
  ridged , carinated , keeled , carinate bird , flying bird
• Antonyms: 
  ratite , ratite bird , flightless bird