The definition of a reformatory is a correctional institute for children under 18 who are convicted of crimes where they receive discipline and training instead of punishment.(noun)
When kids commit a crime and are sent to a locked institutional facility where they are to be rehabilitated this is an example of a reformatory.
See reformatory in Webster's New World College Dictionary
noun pl. reformatories
See reformatory in American Heritage Dictionary 4
noun pl. re·for·ma·to·ries
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