单词	ultramicroscope
释义	ultramicroscope noun ul·​tra·​mi·​cro·​scope ˌəl-trə-ˈmī-krə-ˌskōp  : an apparatus for making visible by scattered light particles too small to be perceived by an ordinary microscope Example Sentences Recent Examples on the Web Older ultramicroscopes were able to create planes approximately ten microns thick. David Grossman, Popular Mechanics, 26 Nov. 2018 By adding an additional lens, Saghafi was able to create an ultramicroscope with a focal point that can change. David Grossman, Popular Mechanics, 26 Nov. 2018 With ultramicroscopes, the tissue is illuminated with a laser beam that penetrates tissue and lights up certain molecules that lie exactly in that plane. David Grossman, Popular Mechanics, 26 Nov. 2018 Word History Etymology back-formation from ultramicroscopic First Known Use 1906, in the meaning defined above Medical Definition ultramicroscope noun ul·​tra·​mi·​cro·​scope ˌəl-trə-ˈmī-krə-ˌskōp  : an apparatus for making visible by scattered light particles too small to be perceived by the ordinary microscope called also dark-field microscope
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