krypton

American  

[krip-ton] / ˈkrɪp tɒn /

noun

Chemistry.

1. an inert, monatomic gaseous element, present in very small amounts in the atmosphere: used in high-power, tungsten-filament light bulbs. Kr; 83.80; 36.

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krypton British  

/ ˈkrɪptɒn /

noun

1. an inert gaseous element occurring in trace amounts in air and used in fluorescent lights and lasers. Symbol: Kr; atomic no: 36; atomic wt: 83.80; valency: 0; density: 3.733 kg/m³; melting pt: –157.37°C; boiling pt: –153.23±0.10°C

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krypton Scientific  

/ krĭp′tŏn′ /

1. A colorless, odorless element in the noble gas group. It is used in certain fluorescent lamps and photographic flash lamps. Atomic number 36; atomic weight 83.80; melting point −156.6°C; boiling point −152.30°C; density 3.73 grams per liter (0°C).

2. See Periodic Table

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Etymology

Origin of krypton

1895–1900; < Greek kryptón, neuter of kryptós hidden, secret; see crypt

Example Sentences

This process briefly created a straight, glowing line formed by the krypton atoms.

From Science Daily • Nov. 14, 2025

Messer LLC produces liquid nitrogen, oxygen, argon, krypton and xenon at the facility in New Cumberland.

From Seattle Times • Jun. 23, 2023

The existing panes, rather than being ditched, were each taken out, and the gap in the double glazing was filled with an insulating gas—a mixture of argon and krypton.

From Scientific American • Dec. 22, 2022

Noble gases also include neon, argon, xenon, krypton and radon.

From Nature • Sep. 1, 2020

It was impossible for human beings to exist without the addition of those elements existing in the air in minute quantities—neon, krypton, and argon.

From Astounding Stories of Super-Science, August 1930 by Bates, Harry