Human beings are a combination of different characteristics. These include:
All of these aspects are fundamental to someone's personality. Each person has a different type of combination, but everyone has some element of each aspect. Sexuality is as important to the individual as any other of these features and an essential part of being human.
'Hetero-' is a Greek prefix meaning 'different'.
Heterosexual is the word to describe people who are sexually attracted to people of the opposite gender.
'Homo-' is a Greek prefix meaning 'same'.
Homosexual is the word used to refer to people who are sexually attracted to people of the same gender. Men who are attracted to each other are often referred to as gay men and females who are attracted to each other as lesbians.