A group of annelids, so called because the species
composing it have no special organs of respiration.
1. To extinguish the guilt of by sufferance of penalty or some equivalent; to make complete satisfaction for; to atone for; to make amends for; to make expiation for; as, to expiate a crime, a guilt, or sin. To expiate his treason, hath naught left. Milton. The Treasurer obliged himself ...