Meaning of dalton in English:


Pronunciation /ˈdɔːlt(ə)n/


  • A unit used in expressing the molecular weight of proteins, equivalent to atomic mass unit.

    ‘Sterically unhindered because its molecular weight is 527 daltons, Argatroban neutralizes the active serine catalytic site of both free and bound thrombin.’
    • ‘Determination of the mass spectrum of LCP-J8 resulted in a calculated molecular weight of 14,158.45 daltons.’
    • ‘Lepirudin is composed of 65 or 66 amino acids and has a molecular weight of 7000 daltons.’
    • ‘Molecular weights of protein standards are shown in daltons.’
    • ‘These proteins allow diffusion of ions and even large molecules of the size of several hundred daltons.’


1930s named after John Dalton (see Dalton, John).