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bondstone

[bond-stohn]
noun
  1. 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. 2018
British Dictionary definitions for bondstone

bondstone

noun
  1. 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