Dalton

/ˈdɔːltən/

Synonyms

  • amu
  • atomic mass unit

Slang Meanings

Used informally to refer to someone who is not very bright.
He's acting like a total dalton when he can't solve the easy math problem.
In some contexts, it refers to someone who is oblivious or clueless.
Don't be such a dalton and open your eyes to the obvious solution.