As much as a keel (type of vat) will hold

plural of caudal keel

plural of bilge keel

Third-person singular simple present indicative form of keel over

plural of fin keel

plural of false keel

plural of even keel

plural of sliding keel

(intransitive, nautical, also figuratively) Of a vessel: to roll so far on its side that it cannot recover; to capsize or turn turtle.

(ichthyology) A lateral ridge found just anterior to each side of the tail fin on the caudal peduncle of some types of fast-swimming fish. The keels improve the stability of the fish's attitude at speed in the water, and strengthen the support of the caudal fin.