LEARNit Dictionary
atomic weight
noun
/əˌtɒmɪk ˈweɪt/
UK
/əˌtɑːmɪk ˈweɪt/
US
1
the average mass of all the naturally occurring atoms of a chemical element
وزن اتمی, جرم اتمی متوسط, وزن نسبی اتمی