An oil used in a particular religious ritual or sacrament, especially (Christian Church) an oil used in the Eastern Orthodox Church for anointing the sick and dying.
Origin
Mid 19th century; earliest use found in John Mason Neale (1818–1866), Church of England clergyman and author.
Definition of prayer oil in US English:
prayer oil
noun
An oil used in a particular religious ritual or sacrament, especially (Christian Church) an oil used in the Eastern Orthodox Church for anointing the sick and dying.
Origin
Mid 19th century; earliest use found in John Mason Neale (1818–1866), Church of England clergyman and author.