loupe

American  

[loop] / lup /

noun

1. any of several varieties of magnifying glasses, used by jewelers and watchmakers, of from 2 to 20 power and intended to fit in the eye socket, to be attached to spectacles, or to be held in the hand.

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loupe British  

/ luːp /

noun

1. a magnifying glass used by jewellers, horologists, etc

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Etymology

Origin of loupe

1905–10; < French, originally an imperfect gem, a mass of hot metal ≪ Germanic; see loop ³, lob ¹

Example Sentences

My favorite thing to do was to look through the loupe at slides on the light box.

From New York Times • Apr. 20, 2023

On the “Tonight Show,” he proudly explained to Jimmy Fallon that the jewellers had given him a professional-grade loupe.

From The New Yorker • Dec. 9, 2019

The class also requires a book, “How to Identify Plants” and a 10-30X illuminated jewelers loupe.

From Los Angeles Times • Oct. 4, 2019

Photo by Ryan David Brown for The Verge Steve Curry stood in front of a hay bale with a jeweler’s loupe hanging from his neck and a combat veteran cap on his head.

From The Verge • Jun. 25, 2018

He noted the distorted look of Kelly’s right eye as it appeared through his watchmaker’s loupe.

From "The Heart is a Lonely Hunter" by Carson McCullers