A dirndl skirt is a type of traditional dress that is commonly worn in Austria and Germany. It is a full, knee-length skirt that is gathered at the waist and typically paired with a bodice or blouse. Full definition
Dirndl skirt also consists of a blouse, a full skirt, a bodice and an apron. (fashiondips.com)
I made a second version of Simplicity 1523 from 1945, except this time I made a scoop neckline, and used a full dirndl skirt instead of the pattern's original skirt that I used in my Singin» in the Rain dress. (bygumbygolly.com)