| Answer | Crossword Clue |
|---|---|
| daltons | DALTON, a unit of atomic mass |
| daltonian | relating to a dalton, a unit of atomic mass |
| dalton | a unit of atomic mass |
| amu | (formerly) a unit of mass, equal to 1/16 the mass of an oxygen atom having atomic mass 16 |
| amu | unit of mass, equal to 1/12 the mass of the carbon-12 atom and used to express the mass of atomic and subatomic particles |
| amu | atomic mass unit |
