Definition of cure-alls:
(n) :
A method, device or medication that restores good health.
(n) :
An act of healing or state of being healed; restoration to health after a disease, or to soundness after injury.
(n) :
(figurative) A solution to a problem.
(n) :
A process of preservation, as by smoking.
(n) :
Cured fish.
(n) :
A process of solidification or gelling.