Detoxification is a term in the treatment of Alcoholism referring to the Withdrawal of the patient from alcohol.

Moreover, Detoxification is the process of withdrawing from alcohol, usu ally conducted in a supervised, medically monitored setting.
Other /More definition:
Detoxification refers to the first step in treatment for substance-related disorders (substances like alcohol and drugs), in which a person stops using the substance and allows it to exit the body fully.