piatza noun2 •Marketplace, meeting place.Sometimes 5 Imprimaturs are seen together dialogue-wise in the Piatza of one Title page, complementing and ducking each other with their shav'n reverences — 1644 •A shaman among the indigenous peoples of Guyana.The Indian tribes in Guiana have mystery-men, called Piatzas, or Piaies, who constitute a powerful priesthood. — 1876 formspiatzas