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“Dalton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Dalton. Accessed 10 Jun. 2026.
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dalton
noun
dal·ton
ˈdȯlt-ᵊn 
: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to ¹/₁₂ of the atomic mass of the most abundant carbon isotope 12C : atomic mass unit
—used chiefly in biochemistry —abbreviation d
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