Breadcrumb Home > Dictionary > Index K keelson: Meaning and Definition of Find definitions for: keel•son Pronunciation: (kel'sun, kēl'-), [key] — n. Naut. any of various fore-and-aft structural members lying above or parallel to the keel in the bottom of a hull. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: keelson (Thesaurus) keelless Keelung ✖ Related Content Daily Word Quiz: evanescent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language