Final answer:
Individuals who experience no erotic interest in others are referred to as asexual. This orientation is part of the wider spectrum of human sexuality, distinct from other orientations like heterosexuality, homosexuality, and bisexuality.
Step-by-step explanation:
The term that refers to individuals with no erotic interest in others is asexual. Individuals who identify as asexual do not experience sexual attraction or have little or no interest in sexual activities. It is distinct from aromantic, which is a lack of romantic attraction. Sexual orientation is a spectrum and asexuality is one of the many orientations recognized within human sexuality, which also includes heterosexuality, homosexuality, bisexuality, pansexuality, and others. Understanding these different orientations is important for acknowledging the diversity of human sexuality.