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.

plural of flatulence

Flatulence. / (uncountable, countable) An act of flatulating.

plural of flatulation

plural of flatulence tax

A tax on methane emissions from cows, first proposed in New Zealand.

(formal) An emission or expulsion of air from the vagina.