Wiktionary
billowings
n. (plural of billowing English)
Usage examples of "billowings".
But just at that moment Cedric was obviously working something else off because the familiar pungency rose from him even above the billowings from the pipe.
The moon was blanked out by huge billowings of black cloud, and the men worked by the light of torches.
He felt dust fronts, billowings, mixings of turbulence, an occasional vortex.