krypton

/ˈkɹɪptɒn/

IPA: /K R IH1 P T AA0 N/

noun
  1. 1

    The chemical element (symbol Kr) with an atomic number of 36. It is a colourless, odourless noble gas that only reacts with fluorine. It is one of the rarest gases in the Earth's atmosphere.

  2. 2

    An atom of this element.

Source: https://en.wiktionary.org/wiki/krypton