First i want to say thanks for your advice about my mom! I can help you to find out what sigma means and i'm glad about this! I'm from Greece and i can help you! Sigma is a letter from the greek alphabet. It's the "s", you have this letter too! This letter we use it only in the end of world, we called final "s"(teliko sigma), only with small letters, with big letters we have the"Σ" :ΕΞΥΠΝΟΣ-έξυπνοs mean clever man! In the middle of the worlds we have this "σ" and for big letter we have this "Σ". Σ'ΑΓΑΠΩ means i love you, and here in small letters: σ'αγαπώ! BYE! The 18th letter of the Greek alphabet. what she said. Sigma (upper case Σ, lower case σ, lowercase in word-final position ς) is the 18th letter of the Greek alphabet. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not upper case, the final form (ς) is used.
The letter is ultimately derived from Phoenician Sin . However, its name derives from Samekh.
In Eastern forms of Greek writing (used in the European Greek colonies) and in the Middle Ages, the lunate sigma (upper case C, lower case ϲ) — which resembles like the Latin letter C — was often used. Lunate sigma was frequently used for writing Medieval Greek, and it can still sometimes be seen in inscriptions in Greek Orthodox churches, for example, where, for example, the whole of God's creation may be denoted by the word ΚΟCΜΟC ("cosmos"), which in the modern form of writing Greek would be ΚΟΣΜΟΣ.
Upper case Σ is used as a symbol for ...
the summation operator
a class of baryons in particle physics
Lower case σ is used for ...
sigma bonds in chemistry
the parametric standard deviation of a population (as opposed to a sample) in statistics
the divisor function in number theory
the Stefan-Boltzmann constant
the "sigma factor" of RNA polymerase
a measure of electrical conductivity
In popular culture and brands:
SIGMA (verification service), Nielsen Media Research's tracking system for videos
SIGMA (insurance), an Albanian insurance company
Sigma Corporation, camera and lens manufacturer
Mitsubishi Sigma, motor car, a variant of the Galant
Six Sigma is a quality management program
Sigma is a Smith & Wesson firearm
Sigma (Mega Man X), villain in the Mega Man X video game series If that was a typo, and what you actually meant was "stigma", then the definition is: a symbol of disgrace or infamy. For instance, many people may be afraid to have a mental illness diagnosed, for fear of the stigma the diagnosis may cause. whatever anxious vigil said...
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