The definition of a jamb is the framing that makes the side of a door or window.(noun)
An example of a jamb is the part of a door that a bolt goes into when a door is locked.
See jamb in Webster's New World College Dictionary
Origin: ME jambe < OFr, a leg, shank, pier, side post of a door: see gamb
See jamb in American Heritage Dictionary 4
Origin: Middle English jambe
Origin: , from Old French, leg, jamb
Origin: , from Late Latin gamba, horse's hock, leg; see gambol.
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