polyfamily noun2 •A group of people in a polyamorous relationship, who consider each other as family.Group marriage must be contrasted with polyfamilies, which is similar to group marriage but where some members may not considered themselves married to all other members. — 2008 •Such a group, together with children of members of the group.When a child is born into a polyfamily, he or she has legal parents and nonlegal parents. — 2008 formspolyfamilies
