Noun: drop keel dróp keel
- A retractable fin keel used on sailboats to prevent drifting to leeward
"They lowered the drop keel to improve the boat's stability";
- centerboard [US], centreboard [Brit, Cdn], sliding keel [Brit]
Derived forms: drop keels
Type of: fin keel
Part of: sailboat [N. Amer], sailing boat [Brit]