What is the technical term for gray hair?

The technical term for gray hair is "canities." This term specifically refers to the graying of hair that occurs as a natural part of the aging process or as a result of genetic factors. Gray hair develops when the hair follicles produce less melanin, which is the pigment responsible for the color of hair. As the production of melanin declines, hair loses its color and appears gray or white.

Understanding canities is important for barbers as it relates to hair cutting, coloring, and treatments intended for clients with gray hair. It also highlights the significance of melanin in hair health and appearance. The other terms, while related to hair or pigmentation, do not accurately describe the phenomenon of gray hair.