This term is a sexual orientation. Some individuals who identify as having this sexual orientation may believe that they are gender-blind, while others are more in-tune to gender variety which may include appreciating and enjoying transgender, intersex, and genderqueer individuals as well as the different degrees of masculinities and femininities a person may possess, whether they are cisgender (non-transgender) or transgender. Someone who has this sexual orientation has the potential to be attracted to, date, and fall in love with an individual without gender, sex, gender identity, gender expression, sexual orientation or these varying degrees of femininity and masculinity being a limiting factor. Some individuals take their identity of pansexual further than the romantic and/or sexual attraction that is typically associated with sexual orientation and include race, ethnicity, religion etc. as demographics that will not prevent them from being attracted to, date or fall in love with a particular person.

1. Adjective: A group which is open to members of all sexual orientations or gender identities including straight, gay, lesbian, bisexual, transexual, or transvestite.

2. Noun: A person who is sexually interested in other people regardless of gender including males, females, transexuals, tansvestites, gender benders, hermaphrodites, intersexuals, androgenous people, and those with sex-chromosome anomaly such as klinefelter syndrome or turner syndrome.

3. Noun: A person who is a member of a pansexual group or a person who associates with people of all sexual orientations but is not necessarily interested in sex with people of all sexes or genders though ...

loving a person for WHO they are and not what they are
;
wishes to be compatable through mind.

true love

The state of being sexually attracted to males, females, transexuals, transgenders, intersexes (hermaphroditic), transvestites, androgynes, etc...

Kind of like being bisexual, except bi only refers to two sexes.

one who's affections, romantic platonic or sexual, are potentially geared towards anyone regardless of sex or gender identity.

Basically, being attracted to not just two sexes like bisexual implies. They're attracted to ALL genders. This means the pansexual person is attracted to, or can be attracted to, males, females, intersexes, pangenders, androgynes, agenders, genderqueers, bigenders and many more.

A pansexual is someone who isn't influenced by the binaries and labels surrounding gender and sexuality. This can mean attraction to anyone regardless of their gender identity or sexual orientation. Some pansexuals take it a step further to be openly against those labels and definitions, considering them to be destructive and alienating.

Though frequently defined as being a sexual orientation that accepts male, female, and anything else, pansexuality doesn't merely transcend typical gender binaries, but also refers to potential for love or attraction.
One knows if he or she is pansexual if one does not entirely regard gender, race, creed, etc.
Pansexuality is attraction on a more spiritual level, one might say, and focuses on who the target of affection is, rather than "what," as do other sexualities.
That being said, pansexuality and physical attraction--or a compulsion toward one sex more than the other--are not mutually exclusive; a pansexual can be attracted to someone physically and can have gender preferences for these attractions, just as those more concerned with physical attributes and/or genders often will additionally regard spiritual or personal attributes of potential lovers.
In summary, pansexuality is love for a person simply for who he or she is, with little to no concern for what he or she is.