keelboat noun. ['ki:lbǝʊt] L17.
[from KEEL noun¹, noun² + BOAT noun.]
1. A small keel. L17-M18.

2. A large flat boat used on American rivers. US. L18.

3. A yacht built with a permanent keel instead of a centreboard. L19.

Comb.:
keelboatman US a person who works on a keelboat.

[TahlilGaran] English Dictionary ▲