expiator|ˈɛkspɪeɪtə(r)| [a. L. expiātor, f.expiāre: see expiate.] One who expiates or makes satisfaction (for sin). 1847in Craig.1872J. G. Murphy Comm.Lev. iii. 17 To..foreshadow the death of the great Expiator.1878B. Taylor Deukalion ii. iii, They..made me your Expiator.