Definition of Soddy, Frederick in English:

Soddy, Frederick

Pronunciation /ˈsädē/ /ˈsɑdi/

proper noun

  • (1877–1956), English physicist. He assisted William Ramsay in the discovery of helium, formulated a theory of isotopes, and coined the word isotope in 1913 after working on radioactive decay. Nobel Prize for Chemistry (1921).