'Thunderstone' definitions:

Definition of 'Thunderstone'

From: GCIDE
  • Thunderstone \Thun"der*stone`\, n.
  • 1. A thunderbolt, -- formerly believed to be a stone. [1913 Webster]
  • Fear no more the lightning flash, Nor the all-dreaded thunderstone. --Shak. [1913 Webster]
  • 2. (Paleon.) A belemnite. See Belemnite. [1913 Webster]