a discordant state; disagreement; discord.
an instance of this.
Geology. lack of parallelism between adjacent strata, as in an angular unconformity.
(in genetic studies) the degree of dissimilarity in a pair of twins with respect to the presence or absence of a disease or trait.

Origin of discordance

1300–50; Middle English < Anglo-French discordaunce, descordance; see discord, -ance
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British Dictionary definitions for discordance




geology an arrangement of rock strata in which the older underlying ones dip at a different angle from the younger overlying ones; unconformity
lack of agreement or consonance
variants of discord
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

Word Origin and History for discordance

mid-14c.; see discord (v.) + -ance.

Online Etymology Dictionary, © 2010 Douglas Harper

discordance in Medicine




The presence of a given genetic trait in only one member of a pair of identical twins.
Related formsdis•cordant adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.