Definition of affusion in English:



  • 1rare The action or an act of pouring a liquid on to something or someone. Now rare.

  • 2historical, figurative The pouring of water on the body or a part of the body for therapeutic purposes; an instance of this. Frequently with distinguishing word specifying the temperature of the water, especially in "cold affusion". Also figurative. Now historical.

  • 3Christian Church
    Christian Church. The administration of baptism by pouring or sprinkling water over a person's head (opposed to immersion and aspersion); an instance of this.


Early 17th century (in an earlier sense). From (i) French affusion parenchyma;.