
meaning German.
The Big Bang Theory Season 12, Episode 7

because it lives in a state-of-the-art
German incubator.
The Big Bang Theory Season 10, Episode 8

(SINGING IN GERMAN)
The Big Bang Theory Season 10, Episode 20

Now, in German.
The Big Bang Theory Season 10, Episode 20

Quartz, from the
German "quarz"
The Big Bang Theory Season 12, Episode 2