a. [f. KEEL sb.1 + ED2.] a. Of a boat: Having a keel; furnished with a keel.
1847. Medwin, Shelley, I. 239. The boat was … keeled and clinker-built.
1853. Sir H. Douglas, Milit. Bridges, 100. As is often the case with keeled boats, the sides and timbers are slight.
b. Having a central dorsal ridge; carinate.
1787. Fam. Plants, I. 99. Perianth five-parted … the divisions, awl’d, keel’d. Ibid., 375. Seeds … keel’d, annexed to the gaping suture.
1828. Stark, Elem. Nat. Hist., II. 85. Shell oblong,… flattish on the posterior, and somewhat angulated and keeled on the anterior side.
1848. R. Tyas, Favourite Field Flowers, I. 3. Two strap-shaped, keeled, and blunt leaves.
1865. Reader, 29 April, 486/2. The keeled sternum, the grand feature of the skeleton of birds, is very fully developed.
1879. Sir G. Scott, Lect. Archit., II. xiii. 148. Their edges often filleted, or ‘keeled,’ that is, decorated by an arris or edge projecting from their round surface.
