Earthenware is one of many terms for on object made from clay that hardens at lower temperatures – usually between 1,000 to 1,150°C.
Earthenware is very porous and needs to be glazed to be food safe. Terracotta bricks and garden pots are common examples of earthenware. Minton majolica is a collectable glazed example.
Image: Terracotta bricks and garden pot, Sailko, Creative Commons 3.0, Minton glazed Majolica tiles, Clem Rutter, Creative Commons 3.0