fossĭo, ōnis, f. [fodio],
I a digging (rare but class.): recenti fossione terram fumare calentem, Cic. N. D. 2, 9, 25; Col. 11, 2, 41; Plin. 17, 26, 39, § 247.—In plur.: quid fossiones agri repastinationesque proferam? Cic. de Sen. 15, 53.—
II Transf., a ditch , Vitr. 8, 1, 5.