Xenon

//ˈzinɑn// noun

Definitions

Noun
  1. 1
    The chemical element (symbol Xe) with an atomic number of 54. It is a colorless, odorless, unreactive noble gas, used notably in camera flash technology. uncountable, usually
  2. 2
    a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts wordnet

Etymology

From Ancient Greek ξένος (xénos, “foreign, strange”) + -on, used for all noble gases.

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