Dictionary

microbeam

noun mi·cro·beam \ˈmī-krō-ˌbēm\

Definition of MICROBEAM

:  a beam of radiation of small cross section <a focused laser microbeam> <a microbeam of electrons>

First Known Use of MICROBEAM

1950

microbeam

noun mi·cro·beam \ˈmī-krō-ˌbēm\   (Medical Dictionary)

Medical Definition of MICROBEAM

:  a beam of radiation of small cross section <a laser microbeam>

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