scanning electron microscope

noun

a device in which the specimen is examined point by point directly in a moving electron beam, and electrons reflected by the specimen are used to form a magnified, three-dimensional image on a television screen. Abbreviation: SEM

Origin of scanning electron microscope

First recorded in 1950–55

Words Nearby scanning electron microscope

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

How to use scanning electron microscope in a sentence

To make the map, the teams sliced donated tissue into 5,300 sections, each 30 nanometers thick, and imaged them with a scanning electron microscope at a resolution of 4 nanometers.
Google and Harvard Unveil the Largest High-Resolution Map of the Brain Yet | Jason Dorrier | June 6, 2021 | Singularity Hub

British Dictionary definitions for scanning electron microscope

scanning electron microscope

noun

a type of electron microscope that produces a three-dimensional image

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

Scientific definitions for scanning electron microscope

scanning electron microscope

[ skăn′ĭng ]

An electron microscope that moves a narrowly focused beam of electrons across an object and detects the patterns made by the electrons scattered by the object and the electrons knocked loose from the object. From these patterns a three-dimensional image of the object is created.

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