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protium
From Wiktionary, the free dictionary
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See also: Protium
English
Etymology
From proto- + -ium. From Ancient Greek πρῶτος (prôtos, “first”).
Pronunciation
Noun
protium (plural protiums)
- (physics) The lightest and most common isotope of hydrogen, having a single proton and no neutrons: 11H. It is the only stable nuclide with no neutrons.
- Synonyms: H-1, ¹H, hydrogen-1, hydrogen 1, normal hydrogen, light hydrogen
- Hypernyms: hydrogen, H (synonymous when without any qualifier)
- Coordinate terms: H-2, ²H, D, deuterium, hydrogen-2, hydrogen 2, heavy hydrogen (2 nucleons); H-3, ³H, T, tritium, hydrogen-3, hydrogen 3 (3 nucleons); H-4, ⁴H, Q, quadrium, hydrogen-4, hydrogen 4 (4 nucleons); hyperhydrogen
- So far there are no differences among the protiums extracted at various labs, except for concentration levels.
- An atom of this isotope.
- This radioactive decay leaves behind a protium as well.
Derived terms
Related terms
Translations
lightest isotope of hydrogen
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Danish
Etymology
From Ancient Greek πρῶτος (prôtos) + -ium.
Noun
protium n (singular definite protiummet, not used in plural form)
Declension
Dutch
Etymology
From Ancient Greek πρῶτος (prôtos, “first”) + -ium.
Pronunciation
- Hyphenation: pro‧ti‧um
Noun
protium n (uncountable, no diminutive)
Finnish
Etymology
Pronunciation
Noun
protium
Declension
Further reading
- “protium”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish] (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 3 July 2023
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Latin
Pronunciation
- (Classical Latin) IPA(key): [ˈproː.ti.ũː]
- (modern Italianate Ecclesiastical) IPA(key): [ˈprɔt.t͡si.um]
Noun
prōtium n (genitive prōtiī or prōtī); second declension
Declension
Second-declension noun (neuter).
1Found in older Latin (until the Augustan Age).
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