Binocular

Bin·oc·u·lar

Binocular

a.
  1. Having two eyes.
  2. Pertaining to both eyes; employing both eyes at once; as, binocular vision.
  3. Adapted to the use of both eyes; as, a binocular microscope or telescope.

Binocular

n.
  1. A binocular glass, whether opera glass, telescope, or microscope.