sigmoid

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Related to sigmoidal: S curve, sigmoidal kinetics, Sigmoid curve

sigmoid

 [sig´moid]
1. shaped like the letter C or S.
2. the sigmoid colon, the distal part of the colon from the level of the iliac crest to the rectum.

sig·moid

(sig'moyd),
Resembling in outline the letter S or one of the forms of the Greek sigma.
[G. sigma, the letter S, + eidos, resemblance]

sigmoid

/sig·moid/ (sig´moid)
1. shaped like the letter C or S.

sigmoid

(sĭg′moid′) also

sigmoidal

(sĭg-moid′l)
adj.
1. Having the shape of the letter S.
2. Of or relating to the sigmoid colon.

sigmoid

[sig′moid]
Etymology: Gk, sigma, the letter S, eidos, form
1 adj, pertaining to an S shape.
2 n, the sigmoid colon.

sig·moid

(sig'moyd)
Resembling in outline the letter S or one of the forms of the Greek character, sigma.
[G. sigma, the letter S, + eidos, resemblance]

sigmoid

or

sigmoidal

S-shaped.
2. Pertaining to the SIGMOID COLON.

sigmoid

S-shaped.

Sigmoid

The S-shaped curve of the large intestine where the colon joins the rectum.
Mentioned in: Intestinal Polyps

sig·moid

(sig'moyd)
Resembling in outline the letter S or one of the forms of the Greek sigma σ or ς.
[G. sigma, the letter S, + eidos, resemblance]

sigmoid (sig´moid),

adj of or pertaining to an S shape, as in the shape of the pelvic end of the colon prior to its joining the rectum.
sigmoid notch,

sigmoid

shaped like the letter C or S.

sigmoid colon
the distal part of the colon of some species, such as humans, shaped like an S, from the level of the iliac crest to the rectum.
sigmoid curve
an S-shaped curve of the relationship between two variables.
sigmoid flexure of the penis
situated in the bull's penis dorsal and caudal to the scrotal neck.
References in periodicals archive ?
Modeling of preservative uptake as a function of microwave energy applied indicated a sigmoidal nonlinear regression model as "best fit.
O padrao da curva de crescimento dos frutos foi sigmoidal duplo, com tres estagios distintos: estagio I, com crescimento exponencial; estagio II, com pouco crescimento, e estagio III, novamente com crescimento exponencial culminando com a maturacao do fruto.
La acumulacion de N en la biomasa total siguio una curva sigmoidal en todas las especies estudiadas.
Durante el periodo de estudio la masa seca promedio del pericarpo vario de 0,01g en antesis a 6,51g a 118dda (Tabla I), mostrando una cinetica de crecimiento ajustada a las primeras fases de una curva sigmoidal (Figura 1), con un incremento en masa seca muy lento entre antesis y el 34dda (~0,008 g/ dia) y a partir de alli y hasta 118 dda el incremento en masa seca fue sostenido, con una tasa maxima de 0,09g/ dia a los 104dda.
It is a reverse sigmoidal transition function (TableCurve Windows V 1.
2003) fitted the weight gain curve of 17 groups of nine species of rodents using the three sigmoidal growth models, i.
To analyse the variation in quality attributes of the post-harvest pineapple guava fruits, nonlinear polynomial, exponential and sigmoidal models were evaluated as functions of the storage conditions and place of origin (weather conditions) for each of the measured variables during fruit storage.
En ambos casos, la introduccion de un componente probabilistico implica un cambio sustancial en la funcion psicometrica, que pasara a tomar la forma de una funcion sigmoidal (por ejemplo, una funcion logistica como la que se muestra en la ecuacion 1 y en la figura 1).
The development can be expressed as a simple sigmoidal curve with two distinct phases, the first characterised by the growth of the skin and seeds (PEREIRA; MITRA, 2005) and the second by rapid growth of the aril (HIEKE et al.
Caption: Examples of real-time fluorescence curves: a positive reaction demonstrates a sigmoidal shape with clear increase in signal (blue line) while a negative reaction is linear with little to no increase in signal (black line).
Kinnow and Sweet lime cells showed a sigmoidal growth pattern on (H+H) and (EME) liquid media, when PCV was plotted against time.
There were 5 gastric perforations, 4 duodenal, 4 colonic, 4 sigmoidal and 1 rectal injuries.