Yes it is called a hem.
Hem.
Hem.
Trumpet skirt
A skirt's edge is called a Hem
This is called an asymmetrical hem, or a high-low skirt.
The hem
Beach
hem
A hem is the edge of a piece of cloth or clothing that has been turned under and sewn. The bottom hem would be the hem at the bottom of a garment (for example, the hem of your pants at your ankles, or the bottom edge of a dress).
Typically waistline, or just waist, which is really boring. I guess the hem was always considered of greater importance.
An a line skirt is designed to be a flattering shape. The name relates to cut of the skirt as it looks like the letter A. The skirt fits neatly to the hips and gradually gets wider towards the hem.
The bottom of an apron is commonly referred to as the "hem." The hem is the finished edge that prevents fraying and gives the apron a neat appearance. In some cases, it may also be called the "bottom edge" or "lower edge" of the apron.