12-step
adjective
ˈtwelv-ˌstep 
: of, relating to, characteristic of, or being a program that is designed especially to help an individual overcome an addiction, compulsion, serious shortcoming, or traumatic experience by adherence to 12 tenets emphasizing personal growth and dependence on a higher spiritual being
Word History
First Known Use
1983, in the meaning defined above
Medical Definition
12-step
adjective
ˈtwelv-ˌstep
: of, relating to, or characteristic of a program that is designed especially to help an individual overcome an addiction, compulsion, serious shortcoming, or traumatic experience by adherence to 12 tenets emphasizing personal growth and dependence on a higher spiritual being