
Binocularity: The ability to focus upon an object with both eyes and create a single stereoscopic image. Binocularity requires highly convergent orbits. The evolutionary increases among primates in the degree of orbital convergence have been noted to correlate with the expansion of visual brain structures and, as a consequence, with the overall siz...
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binocularly, binocularity 1. Relating to, used by, or involving both eyes at the same time; such as, binocular vision. 2. Having two eyes arranged to produce stereoscopic vision. An optical device, such as a pair of field glasses or opera glasses, designed for simultaneous use by both eyes and consisting of two small telescopes joined with a sing...
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http://www.wordinfo.info/words/index/info/view_unit/1444/
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