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

in the meaning defined above

See Words from the same year
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Medical Dictionary

microbeam

noun mi·cro·beam \ ˈmī-krō-ˌbēm \

medical Definition of microbeam

: a beam of radiation of small cross section
  • a laser microbeam

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