A rumbling sound made by gas moving through the intestines; stomach growling.
From Greek 'borborygmos' (βορβορυγμός), from 'borborízein' (to rumble), ultimately from the onomatopoetic 'borbor-' mimicking the sound itself.
This word has been in medical use for over 2,000 years—Hippocrates and ancient physicians wrote about borborygmi to describe digestive sounds! It's literally Greek onomatopoeia.
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