multĭ-fŏrus, a, um, adj. [multus-foris],
having many openings, pierced with many holes (poet.): non illos ... multifori delectat tibia buxi, Ov. M. 12, 158; Sen. Agam. 346.
multiforus adj. multus+1 FOR-, pierced with many holes : multifori tibia buxi, O. ...
An Elementary Latin Dictionary