Roman Catholic Church. an action, as the sign of the cross, a ceremony resembling a sacrament, or a sacred object, regarded as being instituted by the church rather than by Christ and serving as a means of receiving sanctifying grace.
Origin of sacramental
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of, relating to, or having the nature of a sacrament
bound by or as if by a sacrament
RC Church a sacrament-like ritual action, such as the sign of the cross or the use of holy water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., from Old French sacramental or directly from Late Latin sacramentalis, from sacramentum (see sacrament). As a noun, "religious practice or object," mid-15c.
Online Etymology Dictionary, © 2010 Douglas Harper