A small, round head covering worn by Jewish men, especially during prayer and religious ceremonies.
↗ Read on WikipediaMentioned once in Star Mitzvah.
Star Mitzvah
Season 10 · Episode 6 · S10E06
“Frasier, Niles, and Martin are wearing yarmulkes, while Lilith has a hat on.”
From the same episode and category.
“a Bar Mitzvah is a rite of passage, not an opportunity for you to collect presents.”
“And in the spirit of the occasion, I'm going to try to learn it in Hebrew.”
“The Seattle Star Trek convention is this weekend, and all the Enterprise captains are making an appearance.”
“I need Scott Bakula's autograph to make my collection complete.”