carinate

adj 1: having a ridge or shaped like a ridge or the keel of a ship:

"a carinate sepal" [syn: {ridged}, {carinated}, {keeled}]

2: having or shaped like a carina or keel [syn: {carinated}, {ridged},

{keeled}]

n : birds having keeled breastbones for attachment of flight

muscles [syn: {carinate bird}, {flying bird}] [ant: {ratite}]