WordReference Random House Unabridged Dictionary of American English © 2026
elec′tron mi′croscope, 
  1. Opticsa 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.
  • 1930–35

Collins Concise English Dictionary © HarperCollins Publishers::
electron microscope n
  1. a powerful type of microscope that uses electrons, rather than light, and electron lenses to produce a magnified image
'electron microscope' also found in these entries (note: many are not synonyms or translations):
electron micrograph - microscope - scanning electron microscope - em - freeze-etch - freeze-fracture - glutaraldehyde - Ruska - scanning tunneling microscope - Sem

Forum discussions with the word(s) "electron microscope" in the title:


Look up "electron microscope" at Merriam-Webster
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