bombilation

“A deep-toned booming note came then from the hills, commencing like the warning siren of a space liner approaching its berth and swelling to a bombilation of ear-shattering sound that set the steel of the _Nomad's_ hull vibrating and their very flesh and bones a-tingle.”

Creatures of Vibration

“Yet it was possible in still weather to hear the muted bombilation of the sleepless city and when the wind was in the north to count the hammer-strokes of the great bell of St. Paul's.”

The Green Eyes of Bâst

“The dull reports of fog-signals had become a part of the metropolitan bombilation, but hitherto the choking mist had not secured”

Dope

“The pound of the horse's feet was lost in the titanic bombilation of the elements -- the incessant crash and rumble of thunder and the ever increasing roar of rushing waters.”

The Texan A Story of the Cattle Country

“When the bombilation became too fearful, Lovaina called out from her bed:”

Mystic Isles of the South Seas.