radon

See also: Appendix:Variations of "radon"

English

Chemical element
Rn
Previous: astatine (At)
Next: francium (Fr)

Etymology

Contraction of radium emanation, since the element appears in the radioactive decay of radium. By surface analysis, radio- +‎ -on (“suffix for noble gases”).

Pronunciation

  • enPR: rā'dŏn, IPA(key): /ˈɹeɪdɒn/
  • Audio (Southern England):(file)
  • Audio (General American):(file)

Noun

radon (uncountable)

  1. The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
  2. Radon-222 (22286Rn), the most stable isotope of said element.

Usage notes

The isotopes 222Rn, 220Rn, and 219Rn were discovered independently, and were called radon (Rn), thoron (Tn), and actinon (An) respectively. In 1957, it was finally decided that the name radon should refer to the element in general, regardless of isotope. Thoron still survives as a name for 220Rn today; actinon is mostly obsolete, because 219Rn is short-lived.[1]

Synonyms

a chemical element
radon-222; an isotope of radon

Hyponyms

a chemical element

Derived terms

Translations

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Translations to be checked

See also

References

  1. ^ Thornton, Brett F., Burdette, Shawn C. (22 August 2013) “Recalling radon's recognition”, in Nature Chemistry, volume 5, number 9, →Bibcode, →DOI, →PMID, page 804

Anagrams

Afrikaans

Chemical element
Rn
Previous: astaat (At)
Next: frankium (Fr)

Pronunciation

  • Audio:(file)
  • Hyphenation: ra‧don

Noun

radon (uncountable)

  1. radon

Hypernyms

Basque

Etymology

From Spanish radón.

Pronunciation

  • IPA(key): /radon/ [ra.ð̞õn]
  • Audio:(file)
  • Rhymes: -adon, -on
  • Hyphenation: ra‧don

Noun

radon inan

  1. radon

Declension

Declension of radon (inanimate, singular only, ending in consonant)
indefinite singular
absolutive radon radona
ergative — radonak
dative — radonari
genitive — radonaren
comitative — radonarekin
causative — radonarengatik
benefactive — radonarentzat
instrumental radonez radonaz
inessive — radonean
locative — —
allative — —
terminative — —
directive — —
destinative — —
ablative — —
partitive radonik —
prolative radontzat —

Further reading

  • “radon”, in Euskaltzaindiaren Hiztegia [Dictionary of the Basque Academy] (in Basque), Euskaltzaindia [Royal Academy of the Basque Language]

Crimean Tatar

Other scripts
Cyrillic радон
Roman

Etymology

Borrowed from Russian радон (radon).

Noun

radon

  1. radon

Declension

Declension of radon
singular plural
nominative radon radonlar
genitive radonnıñ radonlarnıñ
dative radonğa radonlarğa
accusative radonnı radonlarnı
locative radonda radonlarda
ablative radondan radonlardan

References

  • Mirjejev, V. A., Usejinov, S. M. (2002) Ukrajinsʹko-krymsʹkotatarsʹkyj slovnyk [Ukrainian – Crimean Tatar Dictionary]‎[1], Simferopol: Dolya, →ISBN
  • “radon”, in Luğatçıq (in Russian)

Czech

Pronunciation

  • IPA(key): [ˈradon]
  • IPA(key): [ˈradoːn]

Noun

radon m inan

  1. radon

Declension

Declension of radon (hard masculine inanimate)
singular plural
nominative radon radony
genitive radonu radonů
dative radonu radonům
accusative radon radony
vocative radone radony
locative radonu radonech
instrumental radonem radony

Danish

Chemical element
Rn
Previous: astat (At)
Next: francium (Fr)

Etymology

From Latin radium +‎ -on.

Noun

radon n (singular definite radonet, not used in plural form)

  1. radon

Declension

Declension of radon
neuter
gender 		singular
indefinite definite
nominative radon radonet
genitive radons radonets

References

Dutch

Chemical element
Rn
Previous: astaat (At)
Next: francium (Fr)

Pronunciation

  • IPA(key): /ˈraː.dɔn/
  • Audio:(file)

Noun

radon n (uncountable)

  1. radon

Esperanto

Noun

radon

  1. accusative singular of rado

Finnish

Etymology

From English radon.

Pronunciation

  • IPA(key): /ˈrɑ(ː)don/, [ˈrɑ̝(ː)do̞n]
  • Rhymes: -ɑdon
  • Syllabification(key): ra‧don
  • Hyphenation(key): ra‧don

Noun

radon

  1. radon

Declension

Inflection of radon (Kotus type 6/paperi, no gradation)
nominative radon radonit
genitive radonin radonien
radoneiden
radoneitten
partitive radonia radoneita
radoneja
illative radoniin radoneihin
singular plural
nominative radon radonit
accusative nom. radon radonit
gen. radonin
genitive radonin radonien
radoneiden
radoneitten
partitive radonia radoneita
radoneja
inessive radonissa radoneissa
elative radonista radoneista
illative radoniin radoneihin
adessive radonilla radoneilla
ablative radonilta radoneilta
allative radonille radoneille
essive radonina radoneina
translative radoniksi radoneiksi
abessive radonitta radoneitta
instructive — radonein
comitative See the possessive forms below.
Possessive forms of radon (Kotus type 6/paperi, no gradation)
first-person singular possessor
singular plural
nominative radonini radonini
accusative nom. radonini radonini
gen. radonini
genitive radonini radonieni
radoneideni
radoneitteni
partitive radoniani radoneitani
radonejani
inessive radonissani radoneissani
elative radonistani radoneistani
illative radoniini radoneihini
adessive radonillani radoneillani
ablative radoniltani radoneiltani
allative radonilleni radoneilleni
essive radoninani radoneinani
translative radonikseni radoneikseni
abessive radonittani radoneittani
instructive — —
comitative — radoneineni
second-person singular possessor
singular plural
nominative radonisi radonisi
accusative nom. radonisi radonisi
gen. radonisi
genitive radonisi radoniesi
radoneidesi
radoneittesi
partitive radoniasi radoneitasi
radonejasi
inessive radonissasi radoneissasi
elative radonistasi radoneistasi
illative radoniisi radoneihisi
adessive radonillasi radoneillasi
ablative radoniltasi radoneiltasi
allative radonillesi radoneillesi
essive radoninasi radoneinasi
translative radoniksesi radoneiksesi
abessive radonittasi radoneittasi
instructive — —
comitative — radoneinesi
first-person plural possessor
singular plural
nominative radonimme radonimme
accusative nom. radonimme radonimme
gen. radonimme
genitive radonimme radoniemme
radoneidemme
radoneittemme
partitive radoniamme radoneitamme
radonejamme
inessive radonissamme radoneissamme
elative radonistamme radoneistamme
illative radoniimme radoneihimme
adessive radonillamme radoneillamme
ablative radoniltamme radoneiltamme
allative radonillemme radoneillemme
essive radoninamme radoneinamme
translative radoniksemme radoneiksemme
abessive radonittamme radoneittamme
instructive — —
comitative — radoneinemme
second-person plural possessor
singular plural
nominative radoninne radoninne
accusative nom. radoninne radoninne
gen. radoninne
genitive radoninne radonienne
radoneidenne
radoneittenne
partitive radonianne radoneitanne
radonejanne
inessive radonissanne radoneissanne
elative radonistanne radoneistanne
illative radoniinne radoneihinne
adessive radonillanne radoneillanne
ablative radoniltanne radoneiltanne
allative radonillenne radoneillenne
essive radoninanne radoneinanne
translative radoniksenne radoneiksenne
abessive radonittanne radoneittanne
instructive — —
comitative — radoneinenne
third-person possessor
singular plural
nominative radoninsa radoninsa
accusative nom. radoninsa radoninsa
gen. radoninsa
genitive radoninsa radoniensa
radoneidensa
radoneittensa
partitive radoniaan
radoniansa 		radoneitaan
radonejaan
radoneitansa
radonejansa
inessive radonissaan
radonissansa 		radoneissaan
radoneissansa
elative radonistaan
radonistansa 		radoneistaan
radoneistansa
illative radoniinsa radoneihinsa
adessive radonillaan
radonillansa 		radoneillaan
radoneillansa
ablative radoniltaan
radoniltansa 		radoneiltaan
radoneiltansa
allative radonilleen
radonillensa 		radoneilleen
radoneillensa
essive radoninaan
radoninansa 		radoneinaan
radoneinansa
translative radonikseen
radoniksensa 		radoneikseen
radoneiksensa
abessive radonittaan
radonittansa 		radoneittaan
radoneittansa
instructive — —
comitative — radoneineen
radoneinensa

Derived terms

compounds

See also

Further reading

Anagrams

French

Pronunciation

  • IPA(key): /ʁa.dɔ̃/
  • Audio:(file)
  • Rhymes: -ɔ̃

Noun

radon m (uncountable)

  1. radon

Further reading

Anagrams

Galician

Noun

radon m (uncountable)

  1. radon

Hungarian

Chemical element
Rn
Previous: asztácium (At)
Next: francium (Fr)

Pronunciation

  • IPA(key): [ˈrɒdon]
  • Hyphenation: ra‧don
  • Rhymes: -on

Noun

radon (usually uncountable, plural radonok)

  1. radon

Declension

Inflection (stem in -o-, back harmony)
singular plural
nominative radon radonok
accusative radont radonokat
dative radonnak radonoknak
instrumental radonnal radonokkal
causal-final radonért radonokért
translative radonná radonokká
terminative radonig radonokig
essive-formal radonként radonokként
essive-modal — —
inessive radonban radonokban
superessive radonon radonokon
adessive radonnál radonoknál
illative radonba radonokba
sublative radonra radonokra
allative radonhoz radonokhoz
elative radonból radonokból
delative radonról radonokról
ablative radontól radonoktól
non-attributive
possessive – singular 		radoné radonoké
non-attributive
possessive – plural 		radonéi radonokéi
Possessive forms of radon
possessor single possession multiple possessions
1st person sing. radonom radonjaim
2nd person sing. radonod radonjaid
3rd person sing. radonja radonjai
1st person plural radonunk radonjaink
2nd person plural radonotok radonjaitok
3rd person plural radonjuk radonjaik

Icelandic

Chemical element
Rn
Previous: astat (As)
Next: fransín (Fr)

Noun

radon n (genitive singular radons, no plural)

  1. radon (chemical element)

Declension

Declension of radon (sg-only neuter)
singular
indefinite definite
nominative radon radonið
accusative radon radonið
dative radoni radoninu
genitive radons radonsins

Italian

Chemical element
Rn
Previous: astato (At)
Next: francio (Fr)

Pronunciation

  • IPA(key): /ˈra.don/
  • Rhymes: -adon
  • Hyphenation: rà‧don

Noun

radon m (invariable)

  1. (chemistry) radon

Anagrams

Japanese

Romanization

radon

  1. Rōmaji transcription of ラドン

Latin

Pronunciation

Noun

radon n (genitive radī); second declension

  1. radon

Declension

Second-declension noun (neuter, Greek-type).

singular plural
nominative radon rada
genitive radī radōrum
dative radō radīs
accusative radon rada
ablative radō radīs
vocative radon rada

Malay

Chemical element
Rn
Previous: astatin (At)
Next: fransium (Fr)

Etymology

From English radon.

Pronunciation

  • IPA(key): [radɔn], [redɔn]
  • Rhymes: -dɔn, -ɔn

Noun

radon

  1. radon (chemical element)

Maltese

Chemical element
Rn
Previous: astat (At)
Next: franċju (Fr)

Etymology

Borrowed from Italian radon.

Pronunciation

  • IPA(key): /ˈraː.dɔn/

Noun

radon m

  1. (chemistry) radon (chemical element)

Polish

Chemical element
Rn
Previous: astat (At)
Next: frans (Fr)

Etymology

Learned borrowing from New Latin radon.

Pronunciation

  • IPA(key): /ˈra.dɔn/
  • Audio 1:(file)
  • Audio 2:(file)
  • Rhymes: -adɔn
  • Syllabification: ra‧don

Noun

radon m inan (related adjective radonowy)

  1. radon (chemical element (symbol Rn, formerly Ro) with atomic number 86; a colorless, odorless, chemically inert but radioactive noble gas)

Declension

Declension of radon
singular
nominative radon
genitive radonu
dative radonowi
accusative radon
instrumental radonem
locative radonie
vocative radonie

Further reading

  • radon in Polish dictionaries at PWN
  • radon in PWN's encyclopedia

Romanian

Etymology

Borrowed from French radon.

Noun

radon n (uncountable)

  1. radon

Declension

Declension of radon
singular only indefinite definite
nominative-accusative radon radonul
genitive-dative radon radonului
vocative radonule

Serbo-Croatian

Noun

radon m inan (Cyrillic spelling радон)

  1. radon

Slovene

Chemical element
Rn
Previous: astát (At)
Next: fráncij (Fr)

Pronunciation

  • IPA(key): /ráːdɔn/, /radóːn/

Noun

radọ̑n or radón m inan

  1. radon

Declension

The diacritics used in this section of the entry are non-tonal. If you are a native tonal speaker, please help by adding the tonal marks.
Masculine inan., hard o-stem
nominative rádon
genitive rádona
singular
nominative
(imenovȃlnik) 		rádon
genitive
(rodȋlnik) 		rádona
dative
(dajȃlnik) 		rádonu
accusative
(tožȋlnik) 		rádon
locative
(mẹ̑stnik) 		rádonu
instrumental
(orọ̑dnik) 		rádonom

Further reading

  • “radon”, in Slovarji Inštituta za slovenski jezik Frana Ramovša ZRC SAZU (in Slovene), 2014–2025

Swedish

Chemical element
Rn
Previous: astat (At)
Next: francium (Fr)

Pronunciation

  • IPA(key): /raˈdoːn/
  • Audio:(file)

Noun

radon n (uncountable)

  1. radon

Declension

Declension of radon
nominative genitive
singular indefinite radon radons
definite radonet radonets
plural indefinite — —
definite — —

References

Anagrams

Turkish

Chemical element
Ra
Previous: astatin (At)
Next: fransiyum (Fr)

Etymology

Borrowed from French radon.

Pronunciation

  • Audio:(file)

Noun

radon (definite accusative radonu, plural radonlar)

Declension

Declension of radon
singular plural
nominative radon radonlar
definite accusative radonu radonları
dative radona radonlara
locative radonda radonlarda
ablative radondan radonlardan
genitive radonun radonların

Further reading

  • “radon”, in Turkish dictionaries, Türk Dil Kurumu

Welsh

Chemical element
Rn
Previous: astatin (At)
Next: ffranciwm (Fr)

Etymology

Borrowed from English radon.

Pronunciation

Noun

radon m (uncountable, not mutable)

References

  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “radon”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
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