Definition of Zsigmondy, Richard Adolf in US English:

Zsigmondy, Richard Adolf

proper noun

  • (1865–1929), German chemist, born in Austria. He investigated the properties of various colloidal solutions and invented the ultramicroscope for counting colloidal particles. Nobel Prize for Chemistry (1925).

Pronunciation

Zsigmondy, Richard Adolf

/ˈZHiɡˌmôndē/