Meaning of labiomancy in English:

labiomancy

Pronunciation /ˈleɪbɪəmansi/

noun

rare
  • The action or skill of apprehending what a person is saying by observing the movement of his or her lips; lip-reading.

Origin

Late 17th century; earliest use found in Robert Plot (bap. 1640, d. 1696), naturalist and antiquary. From labio- + -mancy.