Atomic mass

noun

Definitions

Noun
  1. 1
    The mass of an atom. countable, uncountable
  2. 2
    (chemistry) the mass of an atom of a chemical element expressed in atomic mass units wordnet
  3. 3
    atomic weight; the average mass of atoms of an element. countable, proscribed, uncountable

Next best steps

Mini challenge

Unscramble this word: atomicmass