deuterium
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English
Etymology
deutero- + -ium. Coined by American physical chemist Harold Urey, from Ancient Greek δεύτερος (deúteros, “second”)
Pronunciation
- (UK) IPA(key): /djuːˈtɪəɹɪəm/, /dʒuːˈtɪəɹɪəm/
Audio (Southern England) (file) - (US) IPA(key): /djuːˈtɪɹi.əm/
- Hyphenation: deu‧te‧ri‧um
- Rhymes: -ɪəɹiəm
Noun
deuterium (countable and uncountable, plural deuteriums)
- (physics) An isotope of hydrogen formed of one proton and one neutron in each atom - 21H.
- Heavy water is "heavy" because it contains deuterium.
- An atom of this isotope.
- There were about 80 deuteriums for every million protiums, and virtually no tritium.
Usage notes
IUPAC recommends that the chemical symbol for deuterium should be 2H, rather than D; to prevent problems in alphabetical sorting of formulae. Likewise, tritium should have the chemical symbol 3H, rather than T.
Synonyms
- heavy hydrogen
- 2H, D (chemical symbol)
Hypernyms
Coordinate terms
Derived terms
Related terms
Translations
isotope of hydrogen — see also heavy hydrogen
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See also
References
Czech
Pronunciation
Noun
deuterium n
- deuterium (isotope of hydrogen)
Declension
Dutch
Etymology
Borrowed from English deuterium. Coined by Harold Urey, an American chemist, from Ancient Greek δεύτερος (deúteros, “second”) + -ium.
Pronunciation
Noun
deuterium n (uncountable)
Derived terms
Finnish
Etymology
Internationalism (see English deuterium).
Pronunciation
Noun
deuterium
Declension
| Inflection of deuterium (Kotus type 5/risti, no gradation) | ||||
|---|---|---|---|---|
| nominative | deuterium | deuteriumit | ||
| genitive | deuteriumin | deuteriumien | ||
| partitive | deuteriumia | deuteriumeja | ||
| illative | deuteriumiin | deuteriumeihin | ||
| singular | plural | |||
| nominative | deuterium | deuteriumit | ||
| accusative | nom. | deuterium | deuteriumit | |
| gen. | deuteriumin | |||
| genitive | deuteriumin | deuteriumien | ||
| partitive | deuteriumia | deuteriumeja | ||
| inessive | deuteriumissa | deuteriumeissa | ||
| elative | deuteriumista | deuteriumeista | ||
| illative | deuteriumiin | deuteriumeihin | ||
| adessive | deuteriumilla | deuteriumeilla | ||
| ablative | deuteriumilta | deuteriumeilta | ||
| allative | deuteriumille | deuteriumeille | ||
| essive | deuteriumina | deuteriumeina | ||
| translative | deuteriumiksi | deuteriumeiksi | ||
| abessive | deuteriumitta | deuteriumeitta | ||
| instructive | — | deuteriumein | ||
| comitative | See the possessive forms below. | |||
Further reading
- “deuterium”, 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 2023-07-02
Latin
Noun
deuterium n (genitive deuteriī or deuterī); second declension
Declension
Second-declension noun (neuter).
| Case | Singular | Plural |
|---|---|---|
| Nominative | deuterium | deuteria |
| Genitive | deuteriī deuterī1 |
deuteriōrum |
| Dative | deuteriō | deuteriīs |
| Accusative | deuterium | deuteria |
| Ablative | deuteriō | deuteriīs |
| Vocative | deuterium | deuteria |
1Found in older Latin (until the Augustan Age).
Malay
Etymology
From English hydrogen, from Ancient Greek δεύτερος (deúteros, “second”) + -ium.
Pronunciation
Noun
deuterium