| SIG | an S-shaped dural sinus on the temporal and occipital bones |
|---|---|
| SIG | tributaries of the inferior mesenteric vein |
| SIG | of or relating to the sigmoid flexure in the large intestine |
| SIG | surgical removal of part or all of the sigmoid colon (usually to remove a malignant tumor) |
| SIG | an endoscope (a flexible fiberoptic probe) for examining the sigmoid colon |
| SIG | visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps |
| SIG | Austrian neurologist who originated psychoanalysis (1856-1939) |
| SIG | United States composer (born in Hungary) who composed operettas (1887-1951) |
| SIG | structure displaying a board on which advertisements can be posted |
| SIG | a perceptible indication of something not immediately apparent (as a visible clue that something has happened) |
| SIG | any communication that encodes a message |
| SIG | a public display of a (usually written) message |