1. a flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord

2. raw, immediate yet secret, natural, nurturing, a filter, the complete source and pathway of all knowledge between actor and audience

ORIGIN- Late 17th cent.: From Latin, from Greek plakous, plakount- flat cake, based plax, plak- flat plate.

also: play centre, place enter.