Humans are very complex beings. The Lifestyle encompasses many different levels of play and types of relationships from swinging to exhibitionism and many more. Polyamory is a love relationship that can cross into many levels of the Lifestyle. Polyamorists can be male, female, bi, straight, gay or swingers, exhibitionists, voyeurs, naturists etc.
Polyamory means "loving more than one". This love is primarily emotional, not sexual, but this love may be sexual, emotional, spiritual, or any combination thereof, according to the desires and agreements of the individuals or groups involved.
"Polyamorous" is also used as a descriptive term by people who are open to more than one emotional relationship even if they are not currently involved in more than one.
Polyamory in it's most basic sense is responsible, honest non-monogamy, as opposed to what society commonly calls "cheating". In a polyamorous relationship, the partners involved all know about one another, and are consenting. The major elements in most polyamorous relationships are: honesty, openness, and plenty of communication.