bleph·​a·​ro·​spasm ˈble-fə-rō-ˌspa-zəm How to pronounce blepharospasm (audio)
: spasmodic winking of the eyelids due to contraction of the muscle encircling the orbit

Word History

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of blepharospasm was in 1842

Dictionary Entries Near blepharospasm

Cite this Entry

“Blepharospasm.” Dictionary, Merriam-Webster, Accessed 30 May. 2023.

Medical Definition


bleph·​a·​ro·​spasm ˈblef-ə-rō-ˌspaz-əm, -rə- How to pronounce blepharospasm (audio)
: spasmodic winking from involuntary contraction of the orbicularis oculi muscle of the eyelids
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