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Word of the Day Wednesday, June 10, 2026

sigmoid

/sɪɡˈmoʊd/ noun · British & US
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What does sigmoid mean?

noun

A mathematical curve resembling the Greek letter sigma, especially one that is S-shaped. In statistics, a sigmoid function is a mathematical function having an S-shaped curve.

Example

"The sigmoid curve of the graph showed a clear relationship between the variables."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for sigmoid

Rhymes with sigmoid

Etymologically related