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sharp-sightedness
DEFINITIONS OF:
sharp-sightedness
1
n
sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
Synonyms:
acuity
,
visual acuity
Types:
20/20
,
twenty-twenty
normal visual acuity, as measured by the ability to read charts at a distance of 20 feet
oxyopia
unusually acute vision
Type of:
sight
,
vision
,
visual modality
,
visual sense
the ability to see; the visual faculty
n
lively attentiveness
Synonyms:
alertness
,
on the qui vive
Type of:
attentiveness
the trait of being observant and paying attention
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