But Penny has no interest
in SUBATOMIC particle research.
The Big Bang Theory Season 3, Episode 15
It's SUBATOMIC particles
in endless aimless collision.
Breaking Bad Season 3, Episode 10
...weren't you,
you little SUBATOMIC dickens?
The Big Bang Theory Season 2, Episode 4
...of a SUBATOMIC particle
called the Higgs boson.
The Big Bang Theory Season 6, Episode 3
What exactly are SUBATOMIC particles?
The Big Bang Theory Season 3, Episode 10