noun
the ability to see in reduced illumination (as in moonlight) (Freq. 1)
• Syn: ↑night vision, ↑scotopic vision, ↑twilight vision
• Hypernyms: ↑sight, ↑vision, ↑visual sense, ↑visual modality
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nightˈ-sight noun
1. Power of vision by night
2. A sighting device on a camera, rifle, etc to enable it to be used at night
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Main Entry: ↑night
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night-sight «NYT SYT», noun.
a gunsight for use under adverse lighting conditions, especially at night.
Useful english dictionary. 2012.