A kind of Italian decorative pottery made between the 15th and 17th centuries, frequently less ornamental and elaborate than true maiolica, and typically produced by painting not on a tin-glaze but on a white clay slip. Also more generally: early or primitive maiolica.
The style is discussed by G. Liverani Una nota sulla mezzamaiolica in Faenza (1977) 63 99–107.
Mid 19th century. From Italian mezzamaiolica, mezza maiolica from mezza, feminine of mezzo half + maiolica.