Longman Dictionary of Contemporary English homepage

Topic: MUSIC

Date: 1400-1500
Language: Latin
Origin: dissonare, from sonare 'to sound'

dissonance

noun
     
dis‧so‧nance
1 [uncountable and countable]APM technical a combination of notes that sound strange because they are not in harmony [≠ consonance]
2 [uncountable] formal lack of agreement
dissonant adjective
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