discordance

UK: /dɪsˈkɔːd^əns/ US: (dis kôr′dns)

WordReference Random House Unabridged Dictionary of American English © 2025

dis•cord•ance  (dis kôr′dns), n. 

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

• Anglo-French discordaunce, descordance; see discord, -ance
• Middle English 1300–50

Collins Concise English Dictionary © HarperCollins Publishers::

discordance / dɪsˈkɔːd^əns/, discordancy noun

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