argon

noun

ar·​gon ˈär-ˌgän 

: a colorless odorless inert gaseous element found in the air and in volcanic gases and used especially in welding, lasers, and electric bulbs see Chemical Elements Table

Examples of argon in a Sentence

Recent Examples on the Web

In detectors filled with liquid argon, the decay of this isotope creates signals that can look deceptively similar to the ones scientists are searching for. —Rupendra Brahambhatt, Interesting Engineering, 25 Apr. 2026

Fire officials said the initial investigation found oxygen sensors used in the plant's magnesium transfer, which is usually transferred using argon gas to prevent oxygen exposure, may have malfunctioned and the subsequent exposure to oxygen may have caused the explosion. —Sara Tenenbaum, CBS News, 21 Apr. 2026

Could fabs substitute a cheaper gas like argon or nitrogen? —Deni Ellis Béchard, Scientific American, 18 Mar. 2026

For nails and hair On the hair, rosehip oil can be applied to the ends, preferably diluted with a carrier oil like argon oil, to add shine and help control frizz. —Beatrice Zocchi, Vogue, 19 Feb. 2026

Word History

Etymology

Greek, neuter of argos idle, lazy, from a- + ergon work; from its relative inertness — more at work

First Known Use

1894, in the meaning defined above

Phrases Containing argon

• potassium-argon

Rhymes for argon

• anton
• axon
• baronne
• baryon
• baton
• boron
• buisson
• bygone
• capon
• cardon
• chiffon
• coupon

Kids Definition

argon

noun

ar·​gon ˈär-ˌgän 

: a colorless odorless element that is a gas found in the air and in volcanic gases and used especially in electric bulbs see element

Medical Definition

argon

noun

ar·​gon ˈär-ˌgän 

: a colorless odorless inert gaseous element found in the air and in volcanic gases and used especially in lasers and electric bulbs

—symbol Ar see Chemical Elements Table