
Homeostasis refers to a system's ABILITY
to regulate its internal environment.
The Big Bang Theory Season 6, Episode 2

A is for artistic, his ABILITY..."
The Big Bang Theory Season 4, Episode 7

and the ABILITY to destroy a
planet at the push of a button.
The Big Bang Theory Season 7, Episode 22

Now, Element
Lad's ABILITY
The Big Bang Theory Season 7, Episode 3

...need the ABILITY to locate
the position of objects in space.
The Big Bang Theory Season 8, Episode 21