[f. prec. + -ITY.] Binocular quality or conditions; simultaneous employment of both eyes.
1854. J. Hogg, Microsc., I. ii. (1867). 113. Obtaining binocularity with the compound achromatic microscope.
1881. Le Conte, Light, 120. Perception of depth of space, so far as this is connected with binocularity.
