ᨾ᩠ᩅᩁᩋᨴᩬᨾ (ᩋᩢ᩠ᨦᨠᩕᩥ᩠ᩈ: Atomic mass; ᨴᩱ᩠ᨿ: มวลอะตอม) ᨸᩮ᩠ᨶᨾ᩠ᩅᩁᨡᩬᨦᩋᨴᩬᨾᨣᩤᩋᩱᨪᩰᨳᩰ᩠ᨷᨡᩬᨦᨵᩣ᩠ᨲᩩᨯᩱᪧ ᨣᩴᨩ᩵ᩣ᩠ᨦ᪩ ᩉ᩠ᨶ᩠᩵ᩅ᩠ᨿᨡᩬᨦᨾ᩠ᩅᩁᩋᨴᩬᨾᨽᩣᩈᩣᩋᩢ᩠ᨦᨠᩕᩥ᩠ᩈᩁᩬ᩶ᨦᩅ᩵ᩤᩋᩮᩋᩮᩢ᩠ᨾᩀᩪ (Atomic Mass Unit - AMU) ᨪᩮᩥ᩠᩵ᨦ ᩋᩮᩋᩮᩢ᩠ᨾᩀᩪᨾᩦᨾ᩠ᩅᩁᨴᩮᩢ᩵ᩣᨠᩢ᩠ᨷ ᨠᩕᩢ᩠ᨾ᪩ ᨶ᩶ᩣᩴᩉ᩠ᨶᩢ᩠ᨠᨾᩣᨲᩕᨮᩣ᩠ᨶᨶᩦ᩶ᨯᩱ᩶ᩃᩩᨠᨶ᩶ᩣᩴᩉ᩠ᨶᩢᨠᨡᩬᨦᩌᩱᨯᩕᩰᨩᩮ᩠ᨶ ᩋᨴᩬᨾ᪨ ᩁᩂ ᨡᩬᨦᨶ᩶ᩣᩴᩉ᩠ᨶᩢᨠᨤᩣᩁ᩼ᨷᩬᩁ ᩋᨴᩬᨾ᪨ ᩁᩂ ᨡᩬᨦᨶ᩶ᩣᩴᩉ᩠ᨶᩢᨠᩋᩬᨠᨪᩥᨩᩮ᩠ᨶ ᩋᨴᩬᨾ᪩[1]