1. a course of action to be followed if a preferred plan fails or an existing situation changes.
2. a plan or procedure that will take effect if an emergency occurs; emergency plan.
1. a course of action to be followed if a preferred plan fails or an existing situation changes.
2. a plan or procedure that will take effect if an emergency occurs; emergency plan.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012