What is the term for increased masculine characteristics in an individual?

The term for increased masculine characteristics in an individual is "androgenic." Androgens are a group of hormones, including testosterone, that play a role in the development of male characteristics. These characteristics can include increased muscle mass, body hair, and a deeper voice, among other traits. When an individual exhibits heightened levels of androgens, it leads to these masculine characteristics becoming more pronounced.

In contrast, "estrogenic" relates to the effects of estrogen, which is associated with the development of female characteristics. "Gonadal" pertains to the gonads (testes in males and ovaries in females) and their functions but does not specifically relate to the development of masculine traits. "Neurogenic" refers to substances or processes that originate in the nervous system; it’s unrelated to hormonal characteristics. Thus, the term "androgenic" accurately describes the increase in masculine traits due to androgens.