binocular

Meanings

1. 1
   adj

   using or involving both eyes together

   Binocular vision helps the brain estimate depth.

2. 2
   noun

   a small optical instrument for both eyes; usually used in the plural binoculars

   A compact binocular was mounted beside the survey camera.

Appears in

Simplified etymology

Binocular contains Latin oculus, meaning “eye” or “bud.” The word is recorded from the early 18th century, while binoculars are recorded in their usual modern sense only from 1871; they are used with both eyes, in contrast to a monocle, whose name goes back to Latin monoculus “one-eyed.”

From French binoculaire.

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External links

• Google Images
• Cambridge Dictionary
• Wiktionary