Search Result for "drop keel":
Wordnet 3.0

NOUN (1)

1. a retractable fin keel used on sailboats to prevent drifting to leeward;
[syn: centerboard, centreboard, drop keel, sliding keel]



WordNet (r) 3.0 (2006):

drop keel
    n 1: a retractable fin keel used on sailboats to prevent
         drifting to leeward [syn: centerboard, centreboard,
         drop keel, sliding keel]