noun
xenon
ZEE-non
noun
1
A colorless, odorless noble gas (chemical symbol Xe, atomic number 54) used in things like camera flashes and certain lamps.
"The car's headlights use xenon bulbs for a brighter, whiter light."
How to Use Xenon
Learner’s notesIn plain EnglishA rare, unreactive gas found in tiny amounts in the air, used in bright lighting and some medical imaging.
Common pairings
xenon gas
xenon headlights
xenon lamp
Word Forms
xenons plural
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The car's headlights use _____ bulbs for a brighter, whiter light.
Etymology
From Ancient Greek xénos, "strange, foreign," plus the "-on" ending used for noble gases — so named because it is rare and unreactive.