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optotype

American

[op-tuh-tahyp] / ˈɒp təˌtaɪp /

noun

Ophthalmology.

type used on an eye chart.

Etymology

Origin of optotype

First recorded in 1885–90; opto- + -type

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.