xen‧on /ˈzenɒn $ ˈziːnɑːn, ˈze-/
noun [uncountable][
Date: 1800-1900;
Language: Greek;
Origin: xenos 'strange' (because it is rare)]
a colourless gas that is found in very small quantities in the air. It is a chemical
element: symbol Xe
[TahlilGaran] Dictionary of Contemporary English ▲