Defn: To filter or sift in.

INFILTRATE
In*fil"trate, v. i. [imp. & p. p. Infiltrated; p. pr. & vb. n.
Infiltrating.] Etym: [Pref. in- + filtrate: cf. F, s'infiltrer. Cf.
Infilter.]

Defn: To enter by penetrating the pores or interstices of a substance; to filter into or through something. The water infiltrates through the porous rock. Addison.

INFILTRATE
In*fil"trate, v. t.

Defn: To penetrate gradually; — sometimes used reflexively. J. S.
Mill.

INFILTRATION
In`fil*tra"tion, n. Etym: [Cf. F. infiltration.]

1. The act or process of infiltrating, as if 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.

INFILTRATIVE
In*fil"tra*tive, a.

Defn: Of or pertaining to infiltration. Kane.