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English definition of “aberration”

aberration

noun [C or U]     /ˌæb.əˈreɪ.ʃən/ formal
a temporary change from the typical or usual way of behaving : In a moment of aberration, she agreed to go with him. I'm sorry I'm late - I had a mental aberration and forgot we had a meeting today.Faults and mistakes
(Definition of aberration noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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