Kurogorai (black korai): a collective term for kuromono (black ware) such as 'Korai Tenmoku' with an iron glaze and 'Tessaishu' with a celadon glaze on top of iron pigments.
黒高麗-鉄釉の「高麗天目」や鉄絵具のうえに青磁釉をかけた「鉄彩手」などの黒物の総称。