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Jyutping taai3 zi2 caam1
Pinyin tài zǐ shēn

Definitions (Wiktionary)
  1. noun
    root of the false starwort, Pseudostellaria heterophylla (An adaptogenic herb used in traditional Chinese medicine to improve "yin" and "qi" energies, and to treat "dryness" of the lungs.)
    (syn.) 孩儿参