sigmoid
IPA: sˈɪgmɔɪd
noun
- (anatomy) Ellipsis of sigmoid colon. [(anatomy) The S-shaped section of the large intestine between the descending colon and the rectum.]
- (mathematics) Ellipsis of sigmoid function. [(mathematical analysis, statistics) Any of various real functions whose graph resembles an elongated letter "S"; specifically, the logistic function y=(eˣ)/(eˣ+1)=1/(1+e⁻ˣ).]
adjective
- (archaic) Semi-circular, like the uncial or lunar sigma (similar to English C).
- Curved in two directions, like the letter "S", or the Greek ς (sigma); having a serpentine shape.
- (mathematics) Exhibiting logistic growth; having a graph that accelerates until it reaches a carrying capacity.
- (anatomy) Relating to the sigmoid colon.
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Examples of "sigmoid" in Sentences
- Volvulous of Sigmoid colon in a child.
- D. Sigmoid bend of the transverse sinus.
- The neck had a pronounced sigmoid curve.
- I suspect the overall trend is sigmoidal.
- Hence the curve has a sigmoidal or S shape.
- They contained numerous sigmoid earthworm chaetae.
- The steepness of the sigmoidal curve depends on the value of n.
- Look at the ikipidia pages for sigmoidal or hemoglobin, for example.
- Groove for Sigmoid Sinus is a groove in the posterior cranial fossa.
- That curve is sigmoidal, non cooperative binding curves are hyperbolic.
- The adult portion is straight or slightly sigmoidal and may be expanded.
- The dose-response curve normally takes the form of a sigmoid curve (see Figure 3).
- Travels downward on the left side, to the next curve in the colon, called the sigmoid colon.
- The curbs are sharp and perpendicular, not like the American smoothly molded sigmoid-cross-section curves.
- Interestingly it normally occurs in the sigmoid colon in Europeans but mum has it where Asians and Africians get it - were it is mistaken for appendicitis!
- Morren [233] describes a form intermediate between the ordinary slipper-shaped corolla and the perfect peloria just described, and which he calls sigmoid peloria.
- The one problem I had was that, due to certain not uncommon digestive complaints and a routine office exam, a gastroenterologist had discovered a benign polyp in my sigmoid colon.
- In its course it rests upon the squama of the occipital, the mastoid angle of the parietal, the mastoid part of the temporal, and, just before its termination, the jugular process of the occipital; the portion which occupies the groove on the mastoid part of the temporal is sometimes termed the sigmoid sinus.
- It ascends through the right lumbar and hypochondriac regions to the under surface of the liver; it here takes a bend, the right colic flexure, to the left and passes transversely across the abdomen on the confines of the epigastric and umbilical regions, to the left hypochondriac region; it then bends again, the left colic flexure, and descends through the left lumbar and iliac regions to the pelvis, where it forms a bend called the sigmoid flexure; from this it is continued along the posterior wall of the pelvis to the anus.
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