flatulence

中文： 屁、胀气

1. The state of having gas, often malodorous, 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. (countable, uncountable)
2. The release of such gas; breaking wind. (countable, uncountable)

复数 flatulences