# krypton

/ˈkɹɪptɑn/ (US) · /kɹˈɪptən/ (UK) · CEFR C2 · Noun

Source: https://englishreference.com/word/krypton
Updated: 2026-05-27

## Definition

a rare, colorless, and odorless gas that is used in special lights and lasers. It is also the name of a fictional planet in comic books.

For teachers: a colorless, odorless, and tasteless noble gas that occurs in trace amounts in the atmosphere. It is used in high-intensity discharge lamps and as a laser medium; also the name of the home planet of Superman in DC Comics.

## Examples

- Krypton is used in some types of street lamps.
- The scientist explained that krypton is one of the noble gases that do not react with other elements under normal conditions.
- While krypton is primarily valued for its inert properties in industrial lighting, its fictional association with Superman's home world has cemented its place in popular culture as a symbol of immense power and mystery.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.