radon

 

English Wikipedia has an article on:

radon

Wikipedia

Contraction of radium emanation, since the element appears in the radioactive decay of radium.

• enPR: rā'dŏn, IPA^(key): /ˈɹeɪdɒn/

• Audio (Southern England):

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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.

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]

• actinon
• radium emanation

• Radon on the British Royal Society of Chemistry's online periodic table

• Ardon, Daron, rando, Andro, Ronda, Norad, NORAD, Doran, andro, Drona, andor, norad, Nador, and/or, Nardo, adorn, andro-

 

Afrikaans Wikipedia has an article on:

radon

Wikipedia ^af

• Audio:

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• Hyphenation: ra‧don

radon (uncountable)

1. radon

• edelgas

From Spanish radón.

• Audio:

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• IPA^(key): /radon/, [ra.ð̞õ̞n]

radon inan

1. radon

• “radon”, in Euskaltzaindiaren Hiztegia, Euskaltzaindia

Borrowed from Russian радон (radon).

radon

1. radon

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

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

radon m inan

1. radon

radon

1. radon

 

Dutch Wikipedia has an article on:

radon

Wikipedia ^nl

• Audio:

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radon n (uncountable)

1. radon

radon

1. accusative singular of rado

 

Finnish Wikipedia has an article on:

radon

Wikipedia ^fi

From English radon.

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

radon

1. radon

• raadon

• “radon”, in Kielitoimiston sanakirja‎^[2] (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 2023-07-03

• andro-

 

French Wikipedia has an article on:

radon

Wikipedia ^fr

• IPA^(key): /ʁa.dɔ̃/

• Audio:

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• Rhymes: -ɔ̃

radon m (uncountable)

1. radon

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

• rando

 

Galician Wikipedia has an article on:

radon

Wikipedia ^gl

radon m (uncountable)

1. radon

 

 radon on Hungarian Wikipedia

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

radon (usually uncountable, plural radonok)

1. radon

 

Icelandic Wikipedia has an article on:

radon

Wikipedia ^is

radon n (genitive singular radons, no plural)

1. radon (chemical element)

 

Italian Wikipedia has an article on:

radon

Wikipedia ^it

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

radon m (invariable)

1. (chemistry) radon

• Andro, Nardò, Rando, andro-, andrò, nardo, ronda

radon

1. Rōmaji transcription of ラドン

 

Latin Wikipedia has an article on:

radon

Wikipedia ^la

• (Classical Latin) IPA^(key): /ˈra.don/, [ˈräd̪ɔn]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈra.don/, [ˈräːd̪on]

radon n (genitive radī); second declension

1. radon

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

 

Malay Wikipedia has an article on:

radon

Wikipedia ^ms

From English radon.

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

radon

1. radon (chemical element)

Borrowed from Italian radon.

• IPA^(key): /ˈraː.dɔn/

radon m

1. (chemistry) radon (chemical element)

 

Polish Wikipedia has an article on:

radon

Wikipedia ^pl

Learned borrowing from New Latin radon.

• IPA^(key): /ˈra.dɔn/

• Audio 1:

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• Audio 2:

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• Rhymes: -adɔn
• Syllabification: ra‧don

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)

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

Borrowed from French radon.

radon n (uncountable)

1. radon

radon m (Cyrillic spelling радон)

1. radon

• IPA^(key): /ráːdɔn/, /radóːn/

radọ̑n or radón m inan

1. radon

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.

• “radon”, in Slovarji Inštituta za slovenski jezik Frana Ramovša ZRC SAZU (in Slovene), 2014–2024

 

Swedish Wikipedia has an article on:

radon

Wikipedia ^sv

• IPA^(key): /raˈdoːn/

• Audio:

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radon n (uncountable)

1. radon

• radon in Svensk ordbok (SO)
• radon in Svenska Akademiens ordlista (SAOL)
• radon in Svenska Akademiens ordbok (SAOB)
• Svensk MeSH

• andor, donar, ordna, rodna

 

Turkish Wikipedia has an article on:

radon

Wikipedia ^tr

Borrowed from French radon.

• Audio:

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radon (definite accusative radonu, plural radonlar)

1. radon

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

 

Welsh Wikipedia has an article on:

radon

Wikipedia ^cy

Borrowed from English radon.

• (North Wales) IPA^(key): /ˈradɔn/
• (South Wales) IPA^(key): /ˈra(ː)dɔn/
• Rhymes: -adon

radon m (uncountable, not mutable)

1. radon

• 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