Perfuse \Per*fuse"\ (p[~e]r*f[=u]z"), v. t. [imp. & p. p. {Perfused} (p[~e]r*f[=u]zd"); p. pr. & vb. n. {Perfusing}.] [L. perfusus, p. p. of perfundere to pour over; per + fundere to pour.] 1. To suffuse; to fill full or to excess. --Harvey. [1913 Webster] 2. To pass a liquid through or over; as, the isolated kidney was perfused with saline solution. [PJC] 3. (Surgery) To pass (a liquid) through an organ. [PJC]