sigma

Etymology
From, , probably from the root sig- as seen in (< sig-yo "to hiss") +.

Noun

 * 1) The eighteenth letter of the Classical and Modern Greek alphabets (Σ,  σ), the twentieth letter of Old and Ancient.
 * 2) * "Herodotus: On The Customs of the Persians", I.139:
 * "en"

- Their names, which are expressive of some bodily or mental excellence, all end with the same letter---the letter which is called San by the Dorians, and Sigma by the Ionians.


 * 1)  The symbol Σ, used to indicate summation of a set or series.
 * 2)  The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution.
 * 3) * 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.
 * 1)  A sigma male.

Translations

 * Arabic:
 * Hijazi Arabic: سِقْما
 * Catalan:
 * Chinese:
 * Mandarin: ,
 * Czech: sigma
 * Dutch:
 * Esperanto:
 * Finnish:
 * French:
 * Galician:
 * German:
 * Greek:
 * Ancient: σῖγμα
 * Hebrew: סִיגְמָא
 * Hungarian:
 * Interlingua: sigma
 * Irish: sigme
 * Japanese:
 * Korean:
 * Malay: sigma
 * Maori: hikama
 * Persian:
 * Polish:
 * Portuguese:
 * Russian:
 * Slovak: sigma
 * Spanish:
 * Swedish:
 * Thai: ซิกมา

Etymology
.

Noun

 * 1) Sigma; the Greek letter Σ (lowercase σ or ς)
 * 2)  sigmoid colon

Declension
when feminine:

Indeclinable when neuter.

Etymology
From.

Noun

 * 1)   letter of the Greek alphabet

Etymology
<

Noun

 * 1) sigma Greek letter

Noun

 * 1)  Greek letter

Noun

 * 1)  Greek letter

Etymology
From,.

Noun

 * 1)  Σ/σ, ς
 * 1)  Σ/σ, ς

Noun

 * 1)  sigmoid colon

Etymology
, from.

Noun

 * 1)  name of the Greek letter Σ, σ

Etymology
or.

Noun

 * 1)  Greek letter

Noun

 * 1) ; the Greek letter Σ, σ