noun
stomach rumbling; borborygmus
Medical and descriptive term for the gurgling or rumbling sound produced by gas moving in the intestines. In everyday conversation, お腹が鳴る or 腹が鳴る is more common.
腹鳴は消化管の中のガスが動く音です。
Borborygmus is the sound of gas moving inside the digestive tract.
静かな会議中に腹鳴がして恥ずかしかった。
I was embarrassed when my stomach rumbled during the quiet meeting.