# Definition of Sigmoid. Meaning of Sigmoid. Synonyms of Sigmoid

Here you will find one or more explanations in English for the word Sigmoid. Also in the bottom left of the page several parts of wikipedia pages related to the word Sigmoid and, of course, Sigmoid synonyms and on the right images related to the word Sigmoid.

## Definition of Sigmoid

Sigmoid
Semilunar Sem`i*lu"nar, a. Shaped like a half moon. Semilunar bone (Anat.), a bone of the carpus; the lunar. See Lunar, n. Semilunar, or Sigmoid, valves (Anat.), the valves at the beginning of the aorta and of the pulmonary artery which prevent the blood from flowing back into the ventricle.
Sigmoid
Sigmoid Sig"moid, Sigmoidal Sig*moid"al, a. [Gr. ???; ??? sigma + ??? form, likeness: cf. F. sigmo["i]de.] Curved in two directions, like the letter S, or the Greek [sigmat]. Sigmoid flexure (Anat.), the last curve of the colon before it terminates in the rectum. See Illust. under Digestive. Sigmoid valves. (Anat.) See Semilunar valves, under Semilunar.

## Meaning of Sigmoid from wikipedia

- A sigmoid function is a mathematical function having a characteristic "S"-shaped curve or sigmoid curve. A common example of a sigmoid function is the...
- Specific uses include: Sigmoid function, a mathematical function Sigmoid colon, part of the large intestine or colon Sigmoid sinus, two structures that...
- The sigmoid colon (or pelvic colon) is the part of the large intestine that is closest to the **** and ****. It forms a loop that averages about 35–40...
- America and Europe the abdominal pain is usually on the left lower side (sigmoid colon), while in Asia it is usually on the right (ascending colon). The...
- The sigmoid sinuses (sigma- or s-shaped hollow curve), also known as the pars sigmoid, are venous sinuses within the skull that receive blood from posterior...
- neural networks, a hard sigmoid is non-smooth function used in place of a sigmoid function. These retain the basic shape of a sigmoid, rising from 0 to 1...
- A logistic function or logistic curve is a common S-shaped curve (sigmoid curve) with equation f ( x ) = L 1 + e − k ( x − x 0 ) , {\displaystyle f(x)={\frac...
- risk. The most commonly affected part of the intestines in adults is the sigmoid colon with the ce**** being second most affected. In children the small...
- averages less than 6 cm in diameter. The descending and sigmoid colon are slightly smaller, with the sigmoid colon averaging 4–5 cm (1.6–2.0 in) in diameter....
- The sigmoid arteries, two or three in number, run obliquely downward and to the left behind the peritoneum and in front of the psoas major, ureter, and...