Thun·der n.
1. The sound which follows a flash of lightning; the report of a discharge of atmospheric electricity.
2. The discharge of electricity; a thunderbolt. [Obs.]
The revenging gods
'Gainst parricides did all their thunders bend. --Shak.
3. Any loud noise; as, the thunder of cannon.
4. An alarming or statrling threat or denunciation.
The thunders of the Vatican could no longer strike into the heart of princes. --Prescott.
Thunder pumper. Zool. (a) The croaker (Haploidontus grunniens). (b) The American bittern or stake-driver.
Thunder rod, a lightning rod. [R.]
Thunder snake. Zool. (a) The chicken, or milk, snake. (b) A small reddish ground snake (Carphophis amoena syn. Celuta amoena) native to the Eastern United States; -- called also worm snake.
Thunder tube, a fulgurite. See Fulgurite.