- Frederick,1877–1956, English chemist: Nobel prize 1921.
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- Frederick. 1877–1956, English chemist, whose work on radioactive disintegration led to the discovery of isotopes: Nobel prize for chemistry 1921
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- British chemist who was a pioneer in the study of radioactivity. With Ernest Rutherford, he explained the atomic disintegration of radioactive elements. Soddy also coined the word isotope to describe elements that were chemically identical but had different atomic weights. He was awarded the Nobel Prize for chemistry in 1921.
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