flatulence

/ˈflæt͡ʃələns/
noun
  1. 1

    The state of having gas, often smelly, trapped (and when released, frequently with noise) in the digestive system of a human and some other animals; wind; and when released, a flatus, a fart.

  2. 2

    The release of such gas; breaking wind.

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