Source : Webster's Revised Unabridged Dictionary (1913)

Permeate \Per"me*ate\, v. t. [imp. & p. p. {Permeated}; p. pr. &
   vb. n. {Permeating}.] [L. permeatus, p. p. of permeare to
   permeate; per + meare to go, pass.]
   1. To pass through the pores or interstices of; to penetrate
      and pass through without causing rupture or displacement;
      -- applied especially to fluids which pass through
      substances of loose texture; as, water permeates sand.
      --Woodward.

   2. To enter and spread through; to pervade.

            God was conceived to be diffused throughout the
            whole world, to permeate and pervade all things.
                                                  --Cudworth.

Source : WordNet®

permeating
     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: {permeant}, {permeative},
            {pervasive}]