a. [ Pref. bi- + carinate. ] (Biol.) Having two keel-like projections, as the upper palea of grasses. [ 1913 Webster ]
a. [ Multi- + carinate. ] (Zool.) Many-keeled. [ 1913 Webster ]
a. [ Uni- + carinated. ] Having one ridge or keel. Craig. [ 1913 Webster ]