D defs.my
Entry 1 sense Webster, 1913

Bondstone

/(bŏnd"stōn`)/ · Bond·stone · IPA
01 n. A stone running through a wall from one face to another, to bind it together; a binding stone.
  1. 1.
    A stone running through a wall from one face to another, to bind it together; a binding stone.(Masonry)