car·i·nate /ˈkærəˌnet, nət/
  (a.)有龍骨形的
  car·i·nate /ˈkærəˌnet, nət/ 形容詞
  隆凸的,具隆線的,具龍骨狀突起的
  Car·i·nate Car·i·na·ted a.  Shaped like the keel or prow of a ship; having a carina or keel; as, a carinate calyx or leaf; a carinate sternum (of a bird).
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  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]