In′fil‐tra″tion (?), n. [Cf. F. infiltration.]
1. The act or process of infiltrating, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body.
2. The substance which has entered the pores or cavities of a body. Addison.
Calcareous infiltrations filling the cavities. Kirwan.
Fatty infiltration. (Med.) See under Fatty. — Infiltration gallery, a filter gallery.