noun
acuity
sharpness of perception or thought
In more detail
1. (noun) the ability to think, see, or understand things clearly and accurately
2. (noun) sharpness or keenness, especially of vision or hearing
Examples
- 1. Her visual acuity was excellent, and she could read the small print without glasses.
- 2. The eagle's acuity of vision allows it to spot prey from high in the sky.
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