Ernest Walton er·nest·wal·ton uncommon noun 1. Irish physicist who (with Sir John Cockcroft in 1931) first split an atom (1903-1995) SynonymsWaltonE. T. S. WaltonErnest WaltonErnest Thomas Sinton Walton Related words Broader terms nuclear physicist WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
