noun
- sharpness or keenness of thought, vision, or hearing
Examples
- The pilot’s visual acuity was tested before each flight.
- Her mental acuity remained sharp well into her nineties.
- The hearing test measured his auditory acuity.
- The detective’s acuity helped solve the complex case.
- Age can sometimes affect one’s mental acuity.
- The eye chart tests visual acuity at different distances.