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Definition of Aston, Francis William in English: Aston, Francis Williamproper nounˈastənˈastən (1877–1945), English physicist. He invented the mass spectrograph (with J. J. Thomson) and eventually discovered many of the 287 naturally occurring isotopes of non-radioactive elements. Nobel Prize for Chemistry (1922).
Definition of Aston, Francis William in US English: Aston, Francis Williamproper nounˈastən (1877–1945), English physicist. He invented the mass spectrograph (with J. J. Thomson) and eventually discovered many of the 287 naturally occurring isotopes of nonradioactive elements. Nobel Prize for Chemistry (1922).
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