Lewis & Short

perfūsōrĭus, a, um, adj. [perfundo], merely wetting or moistening; hence,

  1. I. Slight, superficial (post-Aug.): tenuis et perfusoria voluptas, Sen. Ep. 23, 4.
  2. II. Disturbing, wrongful (post-Aug.): assertio, Suet. Dom. 8.
    Adv.: perfūsōrĭē, slightly, superficially, cursorily, indefinitely (post-class.): perfusorie dicere, aut denuntiare, Dig. 43, 24, 5: dicere, ib. 21, 2, 69.