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oil-immersion objective

American

[oil-i-mur-zhuhn, -shuhn] / ˈɔɪl ɪˌmɜr ʒən, -ʃən /

noun

Optics.

immersion objective.

Etymology

Origin of oil-immersion objective

First recorded in 1880–85

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.