(Proscribed) atomic weight; the average mass of atoms of an element.
Synonym of mass number.
Attributive form of atomic number
The atomic volume is defined an element's atomic weight divided by its density.
Find another word for mass-number. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for mass-number, like: atomic-mass, atomic-weight, nucleon-number, atomic-number and atomic volume.