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Sigma vs Pistil - What's the difference?

sigma | pistil |

As nouns the difference between sigma and pistil

is that sigma is sigma (greek letter) while pistil is (botany) a discrete organ in the center of a flower capable of receiving pollen and producing a fruit, it is divided into an ovary, style and stigma.

sigma

English

Noun

(en noun)
  • The name for the eighteenth letter of the Classical]] and Modern Greek, the twentieth letter of Old and [[Ancient Greek, Ancient.
  • (mathematics) The symbol ? , used to indicate summation of a set or series.
  • (statistics) The symbol ? , used to indicate one standard deviation from the mean, particularly in a normal distribution.
  • * 2011 , Paul Rincon, (bbc.co.uk) LHC: Higgs boson 'may have been glimpsed'
    • None of the spikes seen by the experiments is at much more than the "two sigma" level of certainty.
    A level of "five sigma" is required to claim a discovery, meaning there is less than a one in a million chance the data spike is down to a statistical fluke.

    Derived terms

    * sigmalike * within one sigma: the range from the mean, plus or minus one standard deviation, usually covering 68% of the data points in a normal distribution

    pistil

    English

    (wikipedia pistil)

    Noun

    (en noun)
  • (botany) A discrete organ in the center of a flower capable of receiving pollen and producing a fruit, it is divided into an ovary, style and stigma.
  • * Some plant species have more than one pistil per flower.

    • See also

    * stamen ----