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Words related to sigma

sig·ma
S s

  • sigma particle

    an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ.

  • sigmoid

    shaped like the letter C.

  • greek-letter fraternity

    a fraternity whose name consists usually of two or three Greek letters, as Sigma Delta Phi (ΣΔΦ).

  • sigmatism

    defective pronunciation of sibilant sounds.
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