volvulus
Concise Oxford English Dictionary © 2008 Oxford University Press:
volvulus /ˈvɒlvjʊləs/
▶noun (pl. volvuli /ˈvɒlvjʊlʌɪ, -liː/ or volvuluses) Medicine an obstruction caused by twisting of the stomach or intestine.
– origin C17: mod. L. or med. L., from L. volvere ‘to roll’.
'volvulus' also found in these Oxford entries:

