trifocal
Americanadjective
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Optics. having three foci.
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(of an eyeglass lens) having three portions, one for near, one for intermediate, and one for far vision.
noun
adjective
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having three focuses
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having three focal lengths
noun
Etymology
Origin of trifocal
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
However, the shooting happened at night, and one witness had poor vision and wore trifocal lenses.
From Los Angeles Times ● Dec. 20, 2024
Flores’ girlfriend, who wore glasses with trifocal lenses, picked out Palacios.
From Los Angeles Times ● Oct. 22, 2024
How could a man with trifocal vision fail to see that the peace would need as much planning as the war?
From Time Magazine Archive
The Hilton ballroom is sold out, and Cosby, after starting slowly, leaves the crowd howling at his routine on trifocal eyeglasses.
From Time Magazine Archive
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.
