metella

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

mĕtella, ae, f. (prob. adj., sc. machina),

a basket filled with stones, which the besieged threw down on the heads of the besiegers (post-class.): ut de ligno crates facerent, quas metellas vocaverunt, lapidibusque complerent, etc. (al. metilas, medullas, metulas), Veg. Mil. 4, 6.