quantum theory

1. 1.

   (physics) a physical theory that certain properties occur only in discrete amounts (quanta)

   Broaderscientific theory

   physics

Questions about quantum theory

What does quantum theory mean?

quantum theory means "(physics) a physical theory that certain properties occur only in discrete amounts (quanta)".

Is quantum theory a common word?

quantum theory is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.