| Noun | 1. | reformatory - correctional institution for the detention and discipline and training of young or first offendersborstal - formerly a British reform school for youths considered too young to send to prison correctional institution - a penal institution maintained by the government |
| Adj. | 1. | reformatory - tending to reform; "reformative and rehabilitative agencies"; "reformatory punishment" helpful - providing assistance or serving a useful function |