Definition of night vision in US English:

night vision


  • The faculty of seeing in very low light, especially after the eyes have become adapted.

    • ‘It dawned upon me that they couldn't see me, my night vision was much better than theirs was.’
    • ‘In addition, some people who opted for surgery have found their night vision has worsened dramatically.’
    • ‘A bright light within the boat will ruin his night vision.’
    • ‘First signs are blurry vision, especially in bright light, loss of night vision and needing more light to read by.’
    • ‘He was in one of the islands of light, it was ruining his night vision and he couldn't see into the darkness.’
    • ‘Laser surgery may also slightly reduce your colour and night vision.’
    • ‘My night vision's not great so I had to move closer, maybe I need to eat more carrots or something.’
    • ‘Since cones do not function well in darkness, night vision depends strongly on light picked up by rods.’
    • ‘She avoided looking at the fire, as looking at light would ruin her night vision.’
    • ‘This means that the Cougar has excellent night vision, even though its colour vision is not as good as ours.’
    • ‘Its compounds also help the eyes adapt to bright light and improve night vision.’
    • ‘Does all this extra glare at eye level reduce a driver's night vision, especially on unlit carriageways?’
    • ‘The rods are sensitive to low light and are used mostly for night vision.’
    • ‘I can easily see anything in the distance, and I have pretty good night vision.’
    • ‘Red light doesn't disturb most animals, and it also doesn't destroy one's night vision.’
    • ‘It takes more than 15 minutes to gain night vision inside the pitch black exhibit.’
    • ‘The light signals are done with the beam shining below your buddy's line of sight, so as not to ruin his night vision.’
    • ‘My night vision is very good and getting better as I blink the film from my eyes.’
    • ‘No doubt living in places such as these proves to be a challenge for one without good night vision.’
    • ‘She landed in a crouch, her night vision momentarily ruined by the candle's brief light.’


  • Denoting devices that enhance nighttime vision.

    ‘night-vision goggles’


night vision

/nīt ˈviZHən/