the planet where Superman was born, according to the original story. The people on Krypton were about to die, so his parents sent the baby Superman away in a spacecraft which later landed on Earth.
See also kryptonite .
KRYPTON
Meaning of KRYPTON in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005