Dictionary definition · keel
noun
- a projection or ridge that suggests a keel
- the median ridge on the breastbone of birds that fly
- one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability
verb
- walk as if unable to control one's movements"The drunken man staggered into the room"
Source: Open English WordNet (CC BY 4.0).