American Heritage Dictionary
Century Dictionary
(2)
GNU Webster's 1913
WordNet
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Elsewhere on the web
The moisture adsorption isotherms of starch-based foams were rising sigmoidal curves similar to those of grains and grain products.— CiteULike: Everyone's library
We found sigmoidal relationships between similarity in function and sequence, with clear thresholds for different levels of functional conservation.— CiteULike: Everyone's library
The reaction follows a sigmoidal function indicative of a process of nucleation and growth and was modeled using the Avrami equation.— CiteULike: Everyone's library
"This is called a sigmoidal response, which does not follow in a linear fashion the dose of ATc," Balázsi said.— Science Blog - Science news straight from the source
Other applications include pseudocoloring and sigmoidal look-up tables that emphasize a selected range of gray values targeted to enhance desired features or to adjust the amount of image contrast.

Century Dictionary (1)
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