Final answer:
The described hairstyle process that creates lasting curls or waves by wrapping hair around vertical rods and allowing it to dry completely is known as a perm, which relies on the reformation of disulfide bonds.
Step-by-step explanation:
The hairstyle described, where hair is wrapped around a vertical rod in a spiral movement and must completely dry to prevent frizziness, is known as a permanent wave, commonly called a perm. This technique involves the disruption and reformation of disulfide bonds within the hair strands to create curly or wavy hair. The process can be accomplished using various tools, including perm rods, Flexi rods, or curl reformers. The resulting style is set into the hair and can last several months.