You searched for: “ructation”
ructation (s), ructations (pl) (noun forms)
The act of belching wind from the stomach: "The ructations coming from the man were loud and frequent."
This entry is located in the following units: -ation, -ization (-iz[e] + -ation); -isation (British spelling variation) (page 83) ruct- + (page 1)