
A boulder has a DIAMETER
greater than 25.6 centimeters.
The Big Bang Theory Season 11, Episode 13

Won't work.
The DIAMETER of the tubing is insufficient.
The Big Bang Theory Season 2, Episode 22

All right, how does the flow rate
in a pipe depend on its DIAMETER?
The Big Bang Theory Season 8, Episode 2

A handful of dry pasta
about an inch in DIAMETER...
The Big Bang Theory Season 2, Episode 9

You measured the DIAMETER of
his suspicious mole yesterday.
The Big Bang Theory Season 7, Episode 6