English

Definition of acuity noun from the Oxford Advanced Learner's Dictionary

 

acuity

 noun
noun
BrE BrE//əˈkjuːəti//
 
; NAmE NAmE//əˈkjuːəti//
 
[uncountable] (formal)
 
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the ability to think, see or hear clearly a child’s visual acuity Word Origin late Middle English: from Old French acuité or medieval Latin acuitas, from Latin acuere ‘sharpen’ from acus ‘needle’.
See the Oxford Advanced American Dictionary entry: acuity