[a. F. binocle (= It. binocolo), f. L. bīnī two each + oculī eyes.] A field-glass or opera-glass having tubes for both eyes.
1696. Phillips, Binocle (Fr.), a double Prospective glass … to see at a distance with both eyes at the same time.
1721. in Bailey.
1871. Echo, 18 Jan. My friend took his umbrella and I my binocle.
