砒霜 pīshuāng white arsenic Origin Definitions Defs Strokes Stroke Words Sentences Sents 砒 pī arsenic trioxide (bound form) arsenic trioxide; a highly toxic compound often used as a poison, also known as 砒霜 pīshuāng霜 shuāng noun cream a frostlike powder or substance; a skin cream or cosmetic spread over a surface