What term is used to describe the end of the hair strand that forms a complete circle for styling techniques?

The term that describes the end of the hair strand that forms a complete circle for styling techniques is "curl." Curls are created when the hair is styled into a circular shape, which can be achieved through various techniques, such as rolling or using curling tools. Curls can vary in size and tightness, and they are a fundamental aspect of many hairstyles.

In the context of styling, understanding curls is essential because they contribute significantly to the texture and appearance of the hair. When the hair is curled, it can enhance volume and create movement, making it a popular choice in various looks.

The other options refer to different aspects of hair styling. A wave typically involves a more fluid and elongated pattern rather than a complete circle, while a twist generally refers to twisting sections of hair together to create texture. A roll usually implies a method for creating volume or forming a specific shape, but it may not capture the complete circular formation that curls do.