1. having a curved shape like the letter S
Usage: medical; anatomy

1. the S-shaped part of the large intestine between the descending colon and the rectum
Usage: anatomy; medical

Examples

• The sigmoid curve shows the relationship between the variables.
• The surgeon examined the sigmoid colon during the procedure.
• The graph displays a sigmoid function that levels off at both ends.
• Inflammation of the sigmoid can cause abdominal pain.
• The sigmoid shape is common in biological growth patterns.
• Doctors often check the sigmoid during a colonoscopy.