a place for imprisonment, reformatory discipline, or punishment, especially a prison maintained in the U.S. by a state or the federal government for serious offenders.
2.
Roman Catholic Church. a tribunal in the Curia Romana, presided over by a cardinal (grand penitentiary), having jurisdiction over certain matters, as penance, confession, dispensation, absolution, and impediments, and dealing with questions of conscience reserved for the Holy See.
adjective
3.
(of an offense) punishable by imprisonment in a penitentiary.
4.
of, pertaining to, or intended for imprisonment, reformatory discipline, or punishment.
Origin: 1375–1425; late Middle English penitenciarie priest who administers penance, prison < Medieval Latin pēnitēntiārius of penance. See penitence, -ary
early 15c., "place of punishment for offenses against the church," from M.L. penitentiaria, from fem. of penitentiarius (adj.) "of penance," from L. paenitentia "penitence" (see penitence). Meaning "house of correction" first found 1806 (originally an asylum for prostitutes).