object glass

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noun Optics.

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Origin of object glass

First recorded in 1655–65

Words nearby object glass

object, object ball, object code, object complement, object distance, object glass, objectification, objectify, objection, objectionable, objective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use object glass in a sentence

Curiously the others crowded about the object glass of the periscope.
Boy Scouts in the North Sea|G. Harvey Ralphson
It contains a telescope made by Fitz, whose focal length is seventeen feet, and its object-glass is twelve and a half inches.
The College, the Market, and the Court|Caroline H. Dall
Any errors left over are to be attributed to other causes than the want of collinearity of the axes of object glass and eyepiece.
On Laboratory Arts|Richard Threlfall
Each degree of my scale is equal, however, with the object glass employed, to .002 Mm.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour

We therefore proceeded with the experiment, and fixed into the object-glass the little animal, who was struggling in our tweezers.
The International Monthly, Volume 5, No. 3, March, 1852|Various

British Dictionary definitions for object glass

object glass

noun

optics another name for objective (def. 11)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012