physiology

/ˌfɪziˈɒləd͡ʒi/

IPA: /F IH0 Z IY0 AA1 L AH0 JH IY0/

noun
  1. 1

    A branch of biology that deals with the functions and activities of life or of living matter (as organs, tissues, or cells) and of the physical and chemical phenomena involved.

  2. 2

    The study and description of natural objects; natural science.

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