eyepiece

[ahy-pees]

noun

1. the lens or combination of lenses in an optical instrument through which the eye views the image formed by the objective lens or lenses; ocular.

eyepiece

/ ˈaɪˌpiːs /

noun

1. the lens or combination of lenses in an optical instrument nearest the eye of the observer

eyepiece

1. The lens or group of lenses closest to the eye in an optical instrument such as a telescope or microscope.

Word History and Origins

Origin of eyepiece¹

First recorded in 1780–90; eye + piece

Example Sentences

Magnifying the Jackal’s unflinching eye is a bespoke telescopic eyepiece that peers into the soul of the killer seconds before he pulls the trigger.

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I wear it forward when the lights are too bright but otherwise backward because it helps keep my eyepiece in place.

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Her children gazed into the eyepiece at strange, eight-legged creatures clambering over the moss.

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It wasn’t even a distant gleam yet in Lewis and Clark’s eyepiece.

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A magnifying eyepiece, produced by 3D printing, fits cellphone cameras and takes photos of microscope slides; AI image analysis then picks out and identifies pathogens.

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