noun
raku ware
A type of hand-moulded, low-fired, lead-glazed earthenware, especially associated with the Japanese tea ceremony.
茶道では楽焼の茶碗がよく使われる。
Raku ware tea bowls are often used in the tea ceremony.
The term 楽焼 (raku-yaki) derives from the Raku family of potters, who originated this style in Kyoto in the 16th century. The name is said to come from the character 楽 (raku, 'ease' or 'enjoyment'), which was bestowed by Toyotomi Hideyoshi.