Simple Definition of monocle

from our Learner's Dictionary

monocle

noun

ˈmɑːnɪkəl

plural monocles

: a single round lens for one eye that helps people see and that is held in place by the muscles around the eye

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“Monocle.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/monocle. Accessed 19 Jun. 2026.

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