tritium

trito- +‎ -ium. From Ancient Greek τρίτος (trítos, “third”)

• IPA^(key): /ˈtɹɪti.əm/, IPA^(key): /ˈtrɪʃi.əm/

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tritium (countable and uncountable, plural tritiums)

1. (physics) A radioactive isotope of the element hydrogen (symbol T, ³H or ³₁H) having one proton and two neutrons.
2. An atom of this isotope.
   • 1998, Donald Lee Wise, Electrical and optical polymer systems‎, →ISBN, page 765:

     Electrochemical polymerization of the 1,2-tritiated monomer produced a polymer in which all of the tritiums were eliminated except for those located at the ends of the chains

IUPAC recommends that the chemical symbol for tritium should be ³H, rather than T;[1] to prevent problems in alphabetical sorting of formulae. Likewise, deuterium should have the chemical symbol ²H, rather than D.

• ³H, T (chemical symbol)
• hydrogen-3

• hydrogen

• (isotopes of hydrogen): protium, deuterium, quadrium

• tritium oxide

• triton

• tritium on Wikipedia.Wikipedia

• Elementymology

• ittrium

From Ancient Greek τρίτος (trítos, “third”) +‎ -ium.

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• Hyphenation: tri‧ti‧um

tritium n (uncountable)

1. tritium

From English tritium.

• IPA^(key): /ˈtritium/, [ˈt̪rit̪ium]
• Rhymes: -itium
• Syllabification^(key): tri‧ti‧um

tritium

1. (physics) tritium

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tritium m (plural tritiums)

1. tritium

• “tritium”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

• (Classical) IPA^(key): /ˈtri.ti.um/, [ˈt̪rɪt̪iʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈtrit.t͡si.um/, [ˈt̪rit̪ː͡s̪ium]

tritium n (genitive tritiī or tritī); second declension

1. tritium

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).