[sound.ing] adj (14c) 1: resonant, sonorous
2. a: pompous b: imposing -- sound.ing.ly adv
[2]sounding n (15c) 1 a: measurement of depth esp. with a sounding line b: the depth so ascertained c pl: a place or part of a body of water where a hand sounding line will reach bottom
2: measurement of atmospheric conditions at various heights
3: a probe, test, or sampling of opinion or intention