flatus /ˈfleɪtəs/ noun3 •Gas generated in the digestive tract.This expression is utterly devoid of meaning, a mere flatus vocis. •The expulsion of such gas through the anus.The point of quoque with illos is that those flatus, which have the right to be called winds, are also subject to laws like the winds themselves. — 1940 •(no longer used) Morbid inflation or swelling. formsflatuses