keel over

Definition of Keel Over in English :

1. keel over

turn over and fall

Example Sentences:
'the man had a heart attack and keeled over'

WordNet Lexical Database for English. Princeton University. 2010.

Keel Over

verb (adverb)

1.

to turn upside down; capsize

2. (intransitive) informal

to collapse suddenly

1.

to turn over or upside down; upset; capsize

2.

to fall over suddenly, as in a faint

n.

1. Nautical

a. The principal structural member of a boat or ship, running along the center of the hull from bow to stern, to which the ribs are attached.

b. A projecting ridge or fin on the bottom of the hull of a boat or ship that improves directional control and is often weighted for added stability.

2. The principal structural member of an aircraft, resembling a ship's keel in shape and function.

3. A structure, such as the breastbone of a bird, that resembles a ship's keel in function or shape.

4. A pair of united petals in certain flowers, as those of many members of the pea family.

intr. & tr.v. keeled, keel·ing, keels
Nautical

To capsize or cause to capsize.