Wáng Sǔnyǎn 王損庵, late-Míng / early-Qīng physician whose dysentery writings are charged by 吳士瑛 Wú Shìyīng in KR3eh053 with having identified the disease but missed its root. Frequently paired in the dysentery literature with 李士材 Lǐ Shìcái as a záběng-school theorist whose framework Wú rejects. Further biographical detail not recovered.