daggerboard

/dag-er-bawrd, -bohrd/US // ˈdæg ərˌbɔrd, -ˌboʊrd //UK // (ˈdæɡəˌbɔːd) //

匕首板,大刀板,匕首牌,匕首盘

Definitions

n.名词 noun

1
Nautical.
- : a removable board on a small sailboat, typically of small dimension fore and aft, lowered into the water through a trunk to serve as a keel.