argon

American  

[ahr-gon] / ˈɑr gɒn /

noun

Chemistry.

1. a colorless, odorless, chemically inactive, monatomic, gaseous element that, because of its inertness, is used for filling fluorescent and incandescent lamps and vacuum tubes. Ar; 18; 39.948.

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argon British  

/ ˈɑːɡɒn /

noun

1. an extremely unreactive colourless odourless element of the rare gas series that forms almost 1 per cent (by volume) of the atmosphere. It is used in electric lights. Symbol: Ar; atomic no: 18; atomic wt: 39.948; density: 1.7837 kg/m³; freezing pt: –189.3°C; boiling pt: –185.9°C

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argon Scientific  

/ är′gŏn′ /

1. A colorless, odorless element in the noble gas group. Argon makes up about one percent of the atmosphere. It is used in electric light bulbs, fluorescent tubes, and radio vacuum tubes. Atomic number 18; atomic weight 39.948; melting point −189.2°C; boiling point −185.7°C.

2. See Periodic Table

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Etymology

Origin of argon

1890–95; < Greek, neuter of argós inactive, not working, idle, contraction of aergós equivalent to a- a- ⁶ + érg ( on ) work + -os adj. suffix

Example Sentences

And in this sense the word is still extant in Tibet, probably also in Eastern Turkestan, precisely in Marco's form, ARGON.

From The Travels of Marco Polo — Volume 1 by Yule, Henry

Now it came to pass in those days that the Queen BOLGANA, wife of ARGON, Lord of the Levant, departed this life.

From The Travels of Marco Polo — Volume 1 by Yule, Henry