"1. Pertaining to the use of only one eye for vision or the independent use of one eye such as in monocular vision.
2. An optical device used to view distant objects with a single eye, with only one eyepiece in use by one eye at a time."
"1. Pertaining to the use of only one eye for vision or the independent use of one eye such as in monocular vision.
2. An optical device used to view distant objects with a single eye, with only one eyepiece in use by one eye at a time."