'Hearthstone' definitions:

Definition of 'hearthstone'

(from WordNet)
noun
A stone that forms a hearth

Definition of 'Hearthstone'

From: GCIDE
  • Hearthstone \Hearth"stone`\ (-st[=o]n`), n. Stone forming the hearth; hence, the fireside; home. [1913 Webster]
  • Chords of memory, stretching from every battlefield and patriot grave to every living heart and hearthstone. --A. Lincoln. [1913 Webster]