Pansexuality (often shortened to pan) is the attraction to people regardless to gender. Pansexual people may be described as being "gender blind" showing that gender is not a factor in their attraction to a person.
Pansexuality is often compared to bisexuality or omnisexuality; while those sexualities may be attracted to all or some genders they may feel like the act of being attracted to a certain gender feels different than the act of being attracted to other genders. For example, a bisexual person may feel like the act of being attracted to a woman feels different then being attracted to a man. Bisexual and omnisexual people might also a strong preference for a certain gender. Pansexuality, on the other hand, does not feel any internal difference between genders. (Although, some pansexual people may still have a gender preference).
The romantic counterpart is panromantic.
Flag and Other Symbols
The pansexual flag consists of three stripes, pink, representing attraction to women, yellow representing attraction to non-binary people, and blue, representing attraction to men.
Another common symbol for pansexuality is the P with an arrow and crossed tail. The cross of the tail represents the cross on the symbol for Venus (♀), used to represent women. The arrow represents the arrow on the symbol for Mars (♂), used to represent men. The symbol predates the flag and is still occasionally used today.
Etymology
The prefix pan- comes from the Greek word for "all" or "every".