Definition for Jump Cut
From Biology Forums Dictionary
A break or cut in a shot's temporal continuity, caused by removing a section of a shot and then splicing together what remains of it. On screen the result is abrupt and jerky; in certain films it is deliberate. Also, a jump cut is a transition indicating a break in temporal continuity between two adjacent shots. For example, a shot of a character opening a car door followed by a shot of him driving the car; we don't see the character actually getting into the car, starting the motor, beginning to drive. The term is also used to indicate an abrupt and unexpected shift in locale.