petuntse
Concise Oxford English Dictionary © 2008 Oxford University Press:
petuntse /peɪˈtʊntsə, pɪˈtʌntsə/
▶noun a type of fine china stone used to make porcelain.
– origin C18: from Chin. (Mandarin dial.) báidūnzi, from bái ‘white’ + dūn ‘stone’ + the suffix -zi.
'petuntse' also found in these Oxford entries:

