Meaning & use
Xenon
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A colorless, odorless, chemically unreactive noble gas, used in specialized lighting, lasers, and anesthesia.
See it in a sentence
Xenon headlights produce a brighter, whiter light than traditional halogen bulbs.
Xenon is used in some ion propulsion systems for spacecraft.
A note on using this word
Its name comes from the Greek xenos, meaning 'stranger,' reflecting how rare and unfamiliar the gas seemed when it was discovered in 1898.
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