noun, plural pro·tec·to·ries.
Examples from the Web for protectory
While Hyman was in the grammar grades, a brag pupil, Pasquale was in the Protectory, a branded incorrigible.From Place to Place|Irvin S. Cobb
The “institutions designated by law” for the reception of truants are chiefly the Protectory and the Juvenile Asylum.The Children of the Poor|Jacob A. Riis
He received his education in a protectory where the good brothers were much too busy to observe which hand he used.Seeing Things at Night|Heywood Broun