R.C.Ch. a sacrament in which a priest anoints with oil and prays for a person dying, in danger of death, or otherwise critically ill, infirm, or disturbed
See Anointing of the Sick in American Heritage Dictionary 4
noun Roman Catholic Church
The sacrament of anointing a critically ill or weak person, with prayers for recovery and an act of penance or confession. It replaced the sacramental rite of extreme unction in 1972.