First Known Use: 1933
Dictionary
protium
noun pro·ti·um \ˈprō-tē-əm, ˈprō-shē-\
Definition of PROTIUM
: the ordinary light hydrogen isotope of atomic mass 1
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Origin of PROTIUM
New Latin, from Greek prōtos first
Medical Dictionary
protium
noun pro·ti·um \ˈprōt-ē-əm, ˈprō-shē-\
Medical Definition of PROTIUM
: the ordinary light hydrogen isotope of atomic mass 1
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