gas in, or expelled from, the stomach or intestines
Origin of flatusClassical Latin ; from flare, to blow: see blast
Gas generated in or expelled from the digestive tract, especially the stomach or intestines.
Origin of flatusLatin flatus, wind, fart, from flare, to blow; see bhl&emacron;- in Indo-European roots.
(countable and uncountable, plural flatuses or flatus)
- (uncountable) Gas generated in the digestive tract.
- (countable) Expulsion of such gas through the anus.
- plural form of flatus
Borrowed into English around 1660–1670; from Latin flātus (“blowing, wind”), from flāre (“to blow”).