a. 1. (Bot.) Keel-shaped; having a longitudinal prominence on the back; as, a keeled leaf. [ 1913 Webster ]
2. (Zool.) Having a median ridge; carinate; as, a keeled scale. [ 1913 Webster ]
n. [ See 3d Keel. ] 1. One employed in managing a Newcastle keel; -- called also keelman. [ 1913 Webster ]
2. A small or shallow tub; esp., one used for holding materials for calking ships, or one used for washing dishes, etc. [ 1913 Webster ]