tribology

/tɹaɪˈbɒləd͡ʒi/

IPA: /T R IH1 B AO1 L AH0 JH IY0/

noun
  1. 1

    The science and engineering of interacting surfaces in relative motion; the study and application of technology using the principles of friction, lubrication and wear.

Source: https://en.wiktionary.org/wiki/tribology