bondstone

[ bond-stohn ]
/ ˈbɒndˌstoʊn /

noun

a stone, as a perpend, for bonding facing masonry to a masonry backing.

Origin of bondstone

First recorded in 1835–45; bond1 + stone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for bondstone

bondstone

/ (ˈbɒndˌstəʊn) /

noun

a long stone or brick laid in a wall as a headerAlso called: bonder
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012