1. A partial removal or an abnormal departure in leaving a place that is either excessive or deficient: In the time of the flood crisis, Louis may have been too slow in undertaking the abevacuation of his farm animals to higher ground.

The fire fighters were experienced in managing abevacuations under critical circumstances.

2. Dislodgment, or removals, through abnormal channels: Some grave diggers performed abevacuations at night.