circum-sŏnus, a, um, adj., sounding all around. *
I Act. , filling with sounds : turba canum, barking around , Ov. M. 4, 723.—*
II Pass. , filled with sounds , resounding around : Thisbe avibus, Stat. Th. 7, 261.
circum-sonus adj., sounding around, filling with sound: turba canum, barking around, O. ...
An Elementary Latin Dictionary