[ mawr-ter ]
/ ˈmɔr tər /


a mixture of lime or cement or a combination of both with sand and water, used as a bonding agent between bricks, stones, etc.
any of various materials or compounds for bonding together bricks, stones, etc.: Bitumen was used as a mortar.

verb (used with object)

to plaster or fix with mortar.

Origin of mortar

1250–1300; Middle English morter < Anglo-French; Old French mortier mortar1, hence the mixture produced in it
Related formsmor·tar·less, adjectivemor·tar·y, adjective
Can be confusedcement concrete mortar Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mortarless

  • It also stands on a high cliff, and its dry and mortarless walls are built also on the coat of the onion principle.

    The South Isles of Aran|Oliver J. Burke

British Dictionary definitions for mortarless


/ (ˈmɔːtə) /


verb (tr)

Word Origin for mortar

C13: from Latin mortārium basin in which mortar is mixed; in some senses, via Old French mortier substance mixed inside such a vessel
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

Medicine definitions for mortarless


[ môrtər ]


A vessel in which drugs or other substances are crushed or ground with a pestle.
A machine in which materials are ground and blended or crushed.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with mortarless


see bricks and mortar.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.