monocular

/məˈnɑːkjələr/
noun
  1. An optical device like a small telescope or binoculars, but for one eye only.
    • She brought a monocular to the concert to see the stage better.
    • The hiker used a monocular to spot the trail marker in the distance.
    • A monocular is lighter and more compact than a pair of binoculars.
adjective
  1. Relating to or using only one eye.
    • The pirate wore a monocular patch over his left eye.
    • Monocular vision makes it harder to judge distances accurately.
    • Some birds have monocular vision, with eyes on the sides of their heads.
  2. Designed for use with one eye, as in an optical device.
    • She preferred a monocular viewfinder for her camera.
    • He used a monocular telescope to watch the birds from his window.
    • The monocular microscope was easier to carry than a binocular one.
Antonyms
What does "monocular" mean? | whatsthatwordmean | whatsthatwordmean