noun Etymology: back-formation from ultramicroscopic Date: 1906 an apparatus for making visible by scattered light particles too small to be perceived by an ordinary microscope
ULTRAMICROSCOPE
Meaning of ULTRAMICROSCOPE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012