[per.me.ate] vb -at.ed ; -at.ing [L permeatus, pp. of permeare, fr. per- through + meare to go, pass; akin to MW mynet to go, Czech mijet to pass] vi (1656): to diffuse through or penetrate something ~ vt 1: to spread or diffuse through "a room permeated with tobacco smoke"
2: to pass through the pores or interstices of -- per.me.ative adj