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electron microscope
noun
- a microscope of extremely high power that uses beams of electrons focused by magnetic lenses instead of rays of light, the magnified image being formed on a fluorescent screen or recorded on a photographic plate: its magnification is substantially greater than that of any optical microscope.
electron microscope
noun
- a powerful type of microscope that uses electrons, rather than light, and electron lenses to produce a magnified image
electron microscope
- A microscope that produces images of extremely small objects by using beams of electrons rather than visible light. Since electrons have a much shorter wavelength than light, the use of electron beams rather than light beams can resolve much finer structural details in the sample. Electrons are beamed at the sample and focused by magnets; a detector then converts the refracted or reflected beams into a black and white image.
- See also scanning electron microscope
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Word History and Origins
Origin of electron microscope1
First recorded in 1930–35
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Example Sentences
It took an electron microscope to do it, but he found a virus in the blue patches which matched the type discovered on Tralee.
From Project Gutenberg
I'll arrange for one of the teaching fellows to show you how to prepare metallic samples and operate the electron microscope.
From Project Gutenberg
The electron microscope told them that, now that they had the substance isolated and could examine it.
From Project Gutenberg
The screen was a cubical frame in which an apparently solid image was built up of an object under an electron microscope.
From Project Gutenberg
He found his father in the laboratory working with the electron microscope.
From Project Gutenberg
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