microscope

noun

mi·​cro·​scope ˈmī-krə-ˌskōp How to pronounce microscope (audio)
1
: an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects
especially : compound microscope
2
: a non-optical instrument (such as one using radiations other than light or using vibrations) for making enlarged images of minute objects
an acoustic microscope

Example Sentences

Students viewed the crystals through a microscope.
Recent Examples on the Web Inevitably, in the process of placing Bad Axe under the microscope, Siev also succeeded in putting it on the map, with Rachel’s, the eatery named after his compassionate, committed mother, serving as its soulful, sustaining epicenter. Michael Rechtshaffen, Los Angeles Times, 17 Nov. 2022 The quarterback position has been under the microscope ever since the Colts switched from Ryan to Ehlinger two weeks ago in what then-coach Frank Reich called a collective decision involving him, owner Jim Irsay and general manager Chris Ballard. Nate Atkins, The Indianapolis Star, 12 Nov. 2022 Under the microscope Remember high school biology class? Eli Amdur, Forbes, 10 Nov. 2022 Fox News often comes under scrutiny for the opinions of its regular primetime hosts, but its election coverage is often under the microscope as well. Brian Steinberg, Variety, 8 Nov. 2022 Managing under the microscope of culture warriors and ESG evangelists has clearly rattled senior executives. Byjean-sébastien Jacques, Fortune, 4 Oct. 2022 Ukraine, like Taiwan, has spent decades stuck under the microscope of great power politics. Adam Taylor, Washington Post, 4 Aug. 2022 Now, the three have to race to solve the crime and clear their names, all while being placed under the microscope of a competing podcast. Wilson Chapman, Variety, 27 Mar. 2022 Drug pricing, specifically, is under the microscope of Congress. Harris Kaplan, Forbes, 28 Oct. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microscope.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

New Latin microscopium, from micr- + -scopium -scope

First Known Use

1648, in the meaning defined at sense 1

Time Traveler
The first known use of microscope was in 1648

Dictionary Entries Near microscope

Cite this Entry

“Microscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microscope. Accessed 30 Nov. 2022.

Kids Definition

microscope

noun

mi·​cro·​scope ˈmī-krə-ˌskōp How to pronounce microscope (audio)
1
: an optical instrument consisting of a lens or a combination of lenses for making enlarged or magnified images of minute objects
2
: an instrument using radiation other than light for making enlarged images of very small objects

Medical Definition

microscope

noun

mi·​cro·​scope ˈmī-krə-ˌskōp How to pronounce microscope (audio)
1
: an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects
2
: an instrument using radiations other than light or using vibrations for making enlarged images of minute objects
an acoustic microscope
see electron microscope, scanning electron microscope, x-ray microscope

More from Merriam-Webster on microscope

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ