krypton

[ krip-ton ]

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.

krypton

/ 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

krypton

/ 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

Word History and Origins

Origin of krypton¹

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

Word History and Origins

Origin of krypton¹

C19: from Greek, from kruptos hidden; see crypt

Example Sentences

The final movie to star Christopher Reeve as Kal-El of Krypton, Superman 4 is widely considered to be the worst of the classic Superman films.

From TechCrunch

In Earth One, a revenge-thirsty alien named Tyrell comes to Earth to kill the last son of Krypton.

From The Daily Beast

Since Krypton is dying, Jor-El plots to send his newborn to a far-off planet and settles on earth.

From The Daily Beast

The remaining elements of this group—neon, krypton, and xenon—have been obtained from liquid air.

From Project Gutenberg

The evidence for the existence of krypton and xenon is, however, inconclusive.

From Project Gutenberg

The whole upper vault is charged with pale krypton vapours, which our skin friction may excite to unholy manifestations.

From Project Gutenberg