Source : Webster's Revised Unabridged Dictionary (1913)

Permeant \Per"me*ant\, a. [L. permeans, p. pr.]
   Passing through; permeating. [R.] --Sir T. Browne.

Source : WordNet®

permeant
     adj : spreading throughout; "armed with permeative irony...he
           punctures affectations"; "the pervasive odor of
           garlic"; "an error is pervasive if it is material to
           more than one conclusion" [syn: {permeating}, {permeative},
            {pervasive}]