Tra từ sliding keel - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

sliding keel

noun

a retractable fin keel used on sailboats to prevent drifting to leeward
• Syn:
centerboard, centreboard, drop keel
• Hypernyms:
fin keel
• Hyponyms:
daggerboard
• Part Holonyms:
sailboat, sailing boat