ATOMIC NUMBER 54

 I. (noun) 

Sense 1

Meaning:

A colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts

Synonyms:

atomic number 54; Xe; xenon

Classified under:

Nouns denoting substances

Hypernyms ("atomic number 54" is a kind of...):

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)

argonon; inert gas; noble gas (any of the chemically inert gaseous elements of the helium group in the periodic table)

Holonyms ("atomic number 54" is a substance of...):

air (a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of)

Credits