無言老師 [无－－师]

Jyutping mou4 jin4 lou5 si1
Pinyin wú yán lǎo shī

Definitions (粵典–words.hk)
  1. 名詞
    指​解剖​教學用​遺體
    silent teacher, donated bodies after death to medical education and training.
  2. 近義詞
    大體老師