Shēn Zhàodìng 申兆定 (fl. mid-Qián-lóng era), hào Tiěchán 鐵蟾 (“Iron Toad”), native of Jìnyáng 晉陽 (Tàiyuán, Shānxī). Mid-Qīng lay Lóngmén Daoist scholar; sī shū dìzǐ (“private disciple”) of the WǔLiǔ pài lineage. His 1764 postface to the Tiān xiān zhèng lǐ zhí lùn (KR5i0067) — the recension printed in DZJY — is one of the more detailed bibliographic witnesses to the print-history of the WǔLiǔ corpus, and his metaphor of quántí (fishing-net-and-rabbit-snare) for the relation of book-to-realisation is widely cited in later inner-alchemical literature. Shēn was thirty years old in 1764 (his postface says “I have lived thirty years now”), giving a birth year of c. 1734. He encountered the WǔLiǔ corpus through Zhuāng Píngwáng Mǎichī xiānshēng hiding in Sūzhōu, having previously studied it through other channels for five years. No CBDB record located.