mugitus
From LSJ
Latin > English (Lewis & Short)
mūgītus: ūs, m. id.,
I a lowing, bellowing (class.).
I Lit.: mugitusque boum, Verg. G. 2, 470: edere, to utter lowings, to low, Ov. M. 7, 597: dare, id. F. 1, 560: tollere, Verg. A. 2, 223.—
II Transf., a bellowing, rumbling, roaring, loud noise: mugitus terrae, Cic. Div. 1, 18: nemorum, Plin. 18, 35, 86, § 360; Stat. Th. 10, 263: labyrinthi, Juv. 1, 53.