microscope
Americannoun
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an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye.
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Astronomy. Microscope, the constellation Microscopium.
noun
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an optical instrument that uses a lens or combination of lenses to produce a magnified image of a small, close object. Modern optical microscopes have magnifications of about 1500 to 2000 See also simple microscope compound microscope ultramicroscope
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any instrument, such as the electron microscope, for producing a magnified visual image of a small object
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Any of various instruments used to magnify small objects that are difficult or impossible to observe the naked eye.
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◆ Optical microscopes use light reflected from or passed through the sample being observed to form a magnified image of the object, refracting the light with an arrangement of lenses and mirrors similar to those found in telescopes.
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See also atomic force microscope electron microscope field ion microscope
Etymology
Origin of microscope
First recorded in 1650–60; from New Latin mīcroscopium; micro-, -scope
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The comment landed like a bomb in the private debt landscape, with private lenders under the microscope ever since.
From Barron's
When viewed under an electron microscope, these signals provide detailed maps of where specific elements are located and what the electrode surface looks like.
From Science Daily
To read the data requires a special microscope that can see each layer, then decode the information using an algorithm powered by artificial intelligence.
From Barron's
To measure them, the scientists relied on an advanced microscope that uses quantum sensing.
From Science Daily
Under the microscope, we can easily see the red disc-shaped cells that transport oxygen around our bodies.
From BBC
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.