Pachri a di siramik matiirial we mekop pachriwier, we mieja taip ingkluud oerdnwier, stuonwier ah puoslen. Di plies we soch kaina wier mek kaal pachri. Pachri azwel refa tu di aat ar kraaf a di pata ar di manifakcha a pachri. Dikshineri definishan a simpli abjek mek outa klie we faya. Di definishan a pachri yuuz bai di Amoerkan Sasayati fi Testin ah Matiirial (American Society for Testing and Materials, ASTM) a ""aal siramik wier we faya ah we kantien klie wen ifaam, exsepm teknikal, schrokcharal, ah rifrakchri prodok.""Pachri arijiniet bifuo di Niolitik piiriad, wid siramik abjek laka di Gravetian kolcha Viinos a Dolni Vestoniche (Venus of Dolní Věstonice) figariin we eh-diskova ina Chekia ah diet bak tu 29,000–25,000 BKE, ah pachri vesl we eh-diskova ina Jiangshii, Chaina, we diet bak tu 18,000 BKE. Hoerli Niolitik pachri eh-fain ina plies laka Jomon, Japan (10,500 BC), di Roshan Faar Iis (14,000 BC), Sob-Sa'aaran Afrika ah Sout Amoerka.