Wordnet 3.0
NOUN (1)
1.
abnormal twisting of the intestines (usually in the area of the ileum or sigmoid colon) resulting in intestinal obstruction;
The Collaborative International Dictionary of English v.0.48:
Volvulus \Vol"vu*lus\, n. [NL., fr. L. volvere to turn about, to
roll.] (Med.)
(a) The spasmodic contraction of the intestines which causes
colic.
(b) Any twisting or displacement of the intestines causing
obstruction; ileus. See Ileus.
[1913 Webster]
WordNet (r) 3.0 (2006):
volvulus
n 1: abnormal twisting of the intestines (usually in the area of
the ileum or sigmoid colon) resulting in intestinal
obstruction