krypton
Meanings
noun
- 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.
- An atom of this element.
name
- A fictional planet, the native world of Superman, named after the element krypton.
Pronunciation
Word forms
Etymology
From Ancient Greek κρυπτός (kruptós, “hidden”) + -on, used for all noble gases.
Related words
Derived words
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