| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a fool or simpleton; ninny. |
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') Pronunciation Key
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. |