TV series example of the word

The Big Bang Theory Season 6, Episode 20
...reverts to a mass of undifferentiated protoplasm.

The Big Bang Theory Season 11, Episode 10
And, also, you don't account for the missing mass

The Big Bang Theory Season 1, Episode 4
Is your body mass somehow tied into your self-worth?

The Big Bang Theory Season 5, Episode 15
Mass! That's a cool nickname.

The Big Bang Theory Season 5, Episode 15
'Cause force equals mass times acceleration.