ultramicroscopy

[ uhl-truh-mahy-kros-kuh-pee, -mahy-kruh-skoh-pee ]
/ ˌʌl trə maɪˈkrɒs kə pi, -ˈmaɪ krəˌskoʊ pi /

noun

the use of the ultramicroscope.

Origin of ultramicroscopy