Krypton
[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. Symbol: Kr; atomic weight: 83.80; atomic number: 36.
/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
n.
inert gaseous element, 1898, coined by its discoverers (Sir William Ramsay and Morris W. Travers) from Greek krypton, neuter of adjective kryptos “hidden” (see crypt); so called because it was so difficult to find.
krypton kryp·ton (krĭp’tŏn’)
n.
Symbol Kr
A largely inert gaseous element used in gas fluorescent lamps. Atomic number 36; atomic weight 83.80; melting point -157.4°C; boiling point -153.22°C; density 3.73 grams per liter (0°C).
krypton
(krĭp’tŏn’)
Symbol 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.
A frame language.
[“An Essential Hybrid Reasoning System: Knowledge and Symbol Level Accounts of KRYPTON”, R.J. Brachman et al, Proc IJCAI-85, 1985].
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