sigmoid

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sigmoid

[′sig‚mȯid]
(biology)
S-shaped.
References in periodicals archive ?
Charles Handy, in his 2002 book "The Empty Raincoat," rejected this idea of an unavoidable cycle of demise, claiming that constant growth is attainable by starting a new sigmoid curve before the first one peters out.
Handy describes this as a sigmoid curve of utility versus time:
The parameters k, a and b in Equation 6 represent, respectively, the loading capacity (maximum transfer limit), the growth speed of the sigmoid curve before saturation and the "lag time" for the beginning of the response (Baranyi & Roberts, 1994).
Sigmoid curve is a tilted S-shaped curve that resembles trends in the life cycle of many living things and growth phenomena.