POLKA

Pol″ka (?), n. [[Pol. Polka a Polish woman: cf. F. & G. polka.]] 1. 1. A dance of Polish origin, but now common everywhere. It is performed by two persons in common time.
2. 2. (Mus.) A lively Bohemian or Polish dance tune in 2-4 measure, with the third quaver accented.
Polka jacket, a kind of knit jacket worn by women.