: either of the angles formed by the meeting of an eye's upper and lower eyelids

Word History

Etymology

Late Latin, from Greek kanthos — more at cant entry 4

First Known Use

1646, in the meaning defined above

Time Traveler
The first known use of canthus was in 1646

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Cite this Entry

“Canthus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/canthus. Accessed 29 Mar. 2025.

Medical Definition

: either of the angles formed by the meeting of the upper and lower eyelids

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