Petuntse (白墩子 in pinyin: bai2 dun1 zi0), also spelled petunse, also known as china stone, is a granite-derived feldspar. It is one of the two ingredients used in making chinas[?] (the other ingredient being kaolin).
... is when the urethra develops between the penis and the scrotum.
Infection of the urethra is urethritis, said to be more common in females than males. Urethritis is ...