Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun atomic_number_54

1 sense of atomic number 54

Sense 1
xenon, Xe, atomic number 54 -- (a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts)
       => chemical element, element -- (any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter)
       => noble gas, inert gas, argonon -- (any of the chemically inert gaseous elements of the helium group in the periodic table)