microbeam
noun
mi·cro·beam
ˈmī-krō-ˌbēm 
: a beam of radiation of small cross section
a focused laser microbeam
a microbeam of electrons
Examples of microbeam in a Sentence
Recent Examples on the Web
Gröblacher and his colleagues created microbeams of silicon, each 10 micrometers long and 1 by 0.25 micrometers in cross-section.
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Quanta Magazine, 25 June 2018
Quanta Magazine, 25 June 2018
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microbeam.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1950, in the meaning defined above
Dictionary Entries Near microbeam
Cite this Entry
“Microbeam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microbeam. Accessed 11 Dec. 2023.
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Medical Definition
microbeam
noun
mi·cro·beam
ˈmī-krō-ˌbēm
: a beam of radiation of small cross section
a laser microbeam
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