Lesbian is defined as a woman who is sexually attracted to women; a female who is interested romantically and sexually in other females.

In psychology, the term "lesbian" refers to a person who is attracted romantically, sexually, and/or emotionally to other people of the same gender. This can include attraction to women, nonbinary individuals, or anyone who identifies as LGBTQ+ and falls under the umbrella of "same-gender-attracted."

Lesbian identity is an important aspect of an individual's psychological and social identity, and it can influence their relationships, social interactions, and overall well-being. Research has shown that lesbian, gay, and bisexual individuals often face unique challenges and stressors, such as discrimination, stigma, and social isolation, which can impact their mental health and well-being.

Examples of how the concept of lesbian identity might be relevant in psychology include: