What is the term for hair growth that grows back after cutting?

The term for hair growth that grows back after cutting is commonly referred to as "regrowth." This term specifically describes the process by which hair follicles produce new hair after existing hair has been cut or removed. It is a natural part of the hair growth cycle, where hair continuously regenerates over time. Understanding regrowth is essential for barbers and stylists to manage haircuts, styles, and client expectations, as it affects how frequently clients may need to return for maintenance or touch-ups and helps in planning the desired length and style for future cuts.

The other terms do not specifically relate to hair growth following a cut. "Renewal" may refer to a general process of restoration or refreshment, but it does not specifically denote hair. "Rejuvenation" usually describes a broader concept of making something look or feel younger or more vibrant, not solely applicable to hair growth. "Restoration" implies returning something to a previous state, which could be a part of hair grooming but does not precisely capture the idea of hair growing back after being cut. Therefore, "regrowth" is the most accurate term in this context.