From The Collaborative International Dictionary of English v.0.48:
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. [1913 Webster]
2. To enter and spread through; to pervade; as, after the first setback, the team became permeated with pessimism. [1913 Webster]
God was conceived to be diffused throughout the whole world, to permeate and pervade all things. --Cudworth. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
permeated \permeated\ adj. p. p. of permeate; as, Her poems are permeated with sorrow. [WordNet 1.5] permeating