
...on MOLECULAR positronium.
The Big Bang Theory Season 1, Episode 10

...for that dense MOLECULAR cloud
of Aramis to dissipate.
The Big Bang Theory Season 1, Episode 3

How about a MOLECULAR sieve?
The Big Bang Theory Season 2, Episode 18

Don't rush it. We may be dealing
with befoulment on a MOLECULAR level.
The Big Bang Theory Season 6, Episode 9

...because we were attending a symposium
on MOLECULAR positronium?
The Big Bang Theory Season 1, Episode 10