# tritium
## English
### Etymology

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

### Pronunciation

* IPA: /ˈtɹɪti.əm/, IPA: /ˈtrɪʃi.əm/
* Audio (Southern England):(file)

### Noun

tritium (countable and uncountable, plural tritiums)
* (physics) A radioactive isotope of the element hydrogen (symbol T, $^3$H or $^3$$_1$H) having one proton and two neutrons.
* 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

#### Usage notes

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

#### Synonyms

* $^3$H, T (chemical symbol)
* hydrogen-3

#### Hypernyms

* hydrogen

#### Coordinate terms

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

#### Derived terms

* tritium oxide

#### Related terms

* triton

#### Further reading

* tritium on Wikipedia.Wikipedia

### References

* ↑ “IUPAC: Provisional Recommendations: Chemical Nomenclature and Structure Representation Division”, IR-3.3.2
* Elementymology

### Anagrams

* ittrium

## Danish
### Etymology

From Ancient Greek τρίτος (trítos) +‎ -ium.

### Noun

tritium n (singular definite tritiummet, not used in plural form)
* tritium
    Coordinate terms: protium, deuterium

#### Declension
## Dutch
### Etymology

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

### Pronunciation

* Audio:(file)
* Hyphenation: tri‧ti‧um

### Noun

tritium n (uncountable)
* tritium

## Finnish
### Etymology

From English tritium.

### Pronunciation

* IPA: /ˈtritium/, [ˈt̪rit̪ium]
* Rhymes: -itium
* Hyphenation: tri‧ti‧um

### Noun

tritium
* (physics) tritium

#### Declension

Possessive forms of tritium (Kotus type 5/risti, no gradation) :
first-person singular possessor
singular
plural
nominative
tritiumini
tritiumini
accusative
nom.
tritiumini
tritiumini
gen.
tritiumini
genitive
tritiumini
tritiumieni
partitive
tritiumiani
tritiumejani
inessive
tritiumissani
tritiumeissani
elative
tritiumistani
tritiumeistani
illative
tritiumiini
tritiumeihini
adessive
tritiumillani
tritiumeillani
ablative
tritiumiltani
tritiumeiltani
allative
tritiumilleni
tritiumeilleni
essive
tritiuminani
tritiumeinani
translative
tritiumikseni
tritiumeikseni
abessive
tritiumittani
tritiumeittani
instructive
comitative
—tritiumeineni
second-person singular possessor
singular
plural
nominative
tritiumisi
tritiumisi
accusative
nom.
tritiumisi
tritiumisi
gen.
tritiumisi
genitive
tritiumisi
tritiumiesi
partitive
tritiumiasi
tritiumejasi
inessive
tritiumissasi
tritiumeissasi
elative
tritiumistasi
tritiumeistasi
illative
tritiumiisi
tritiumeihisi
adessive
tritiumillasi
tritiumeillasi
ablative
tritiumiltasi
tritiumeiltasi
allative
tritiumillesi
tritiumeillesi
essive
tritiuminasi
tritiumeinasi
translative
tritiumiksesi
tritiumeiksesi
abessive
tritiumittasi
tritiumeittasi
instructive
comitative
—tritiumeinesi
first-person plural possessor
singular
plural
nominative
tritiumimme
tritiumimme
accusative
nom.
tritiumimme
tritiumimme
gen.
tritiumimme
genitive
tritiumimme
tritiumiemme
partitive
tritiumiamme
tritiumejamme
inessive
tritiumissamme
tritiumeissamme
elative
tritiumistamme
tritiumeistamme
illative
tritiumiimme
tritiumeihimme
adessive
tritiumillamme
tritiumeillamme
ablative
tritiumiltamme
tritiumeiltamme
allative
tritiumillemme
tritiumeillemme
essive
tritiuminamme
tritiumeinamme
translative
tritiumiksemme
tritiumeiksemme
abessive
tritiumittamme
tritiumeittamme
instructive
comitative
—tritiumeinemme
second-person plural possessor
singular
plural
nominative
tritiuminne
tritiuminne
accusative
nom.
tritiuminne
tritiuminne
gen.
tritiuminne
genitive
tritiuminne
tritiumienne
partitive
tritiumianne
tritiumejanne
inessive
tritiumissanne
tritiumeissanne
elative
tritiumistanne
tritiumeistanne
illative
tritiumiinne
tritiumeihinne
adessive
tritiumillanne
tritiumeillanne
ablative
tritiumiltanne
tritiumeiltanne
allative
tritiumillenne
tritiumeillenne
essive
tritiuminanne
tritiumeinanne
translative
tritiumiksenne
tritiumeiksenne
abessive
tritiumittanne
tritiumeittanne
instructive
comitative
—tritiumeinenne
third-person possessor
singular
plural
nominative
tritiuminsa
tritiuminsa
accusative
nom.
tritiuminsa
tritiuminsa
gen.
tritiuminsa
genitive
tritiuminsa
tritiumiensa
partitive
tritiumiaan tritiumiansa
tritiumejaan tritiumejansa
inessive
tritiumissaan tritiumissansa
tritiumeissaan tritiumeissansa
elative
tritiumistaan tritiumistansa
tritiumeistaan tritiumeistansa
illative
tritiumiinsa
tritiumeihinsa
adessive
tritiumillaan tritiumillansa
tritiumeillaan tritiumeillansa
ablative
tritiumiltaan tritiumiltansa
tritiumeiltaan tritiumeiltansa
allative
tritiumilleen tritiumillensa
tritiumeilleen tritiumeillensa
essive
tritiuminaan tritiuminansa
tritiumeinaan tritiumeinansa
translative
tritiumikseen tritiumiksensa
tritiumeikseen tritiumeiksensa
abessive
tritiumittaan tritiumittansa
tritiumeittaan tritiumeittansa
instructive
comitative
—tritiumeineen tritiumeinensa :

## French
### Pronunciation

* Audio:(file)

### Noun

tritium m (plural tritiums)
* tritium

### Further reading

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

## Latin
### Pronunciation

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

### Noun

tritium n (genitive tritiī or tritī); second declension
* tritium

#### Declension

Second-declension noun (neuter).
$^1$Found in older Latin (until the Augustan Age).