krypton

[ krip-ton ]

/ ˈkrɪp tɒn /

noun Chemistry.

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

Nearby words

krutch, krušné hory, krylon, krym, kryo-, krypton, krytron, krâvanh mountains, kríti, królewska huta, króna

Origin of krypton

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for krypton

In Earth One, a revenge-thirsty alien named Tyrell comes to Earth to kill the last son of Krypton.
‘Man of Steel’ Is Fun to Watch, But It’s Still a Failure. Here’s Why.|Sujay Kumar|June 15, 2013|DAILY BEAST
Since Krypton is dying, Jor-El plots to send his newborn to a far-off planet and settles on earth.
‘Man of Steel,’ New Superman Movie Starring Henry Cavill, Falls Flat|Marlow Stern|June 11, 2013|DAILY BEAST
The evidence for the existence of krypton and xenon is, however, inconclusive.
Astronomical Curiosities|J. Ellard Gore
The remaining elements of this group—neon, krypton, and xenon—have been obtained from liquid air.
An Elementary Study of Chemistry|William McPherson

British Dictionary definitions for krypton

krypton

/ (ˈkrɪptɒn) /

noun

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

Word Origin for krypton

C19: from Greek, from kruptos hidden; see crypt

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for krypton

krypton

[ krĭp′tŏn′ ]

n. Symbol Kr

A largely inert gaseous element used in gas fluorescent lamps, whose artificial radioisotope is used in diagnostic imaging. Atomic number 36.

Science definitions for krypton

krypton

[ krĭp′tŏn′ ]

Kr

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). See Periodic Table.