sigma


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.
Related to sigma: Six Sigma

σ

, Σ
1. The 18th letter of the Greek alphabet, sigma.
2. (σ) Symbol for reflection coefficient; standard deviation; a factor in prokaryotic RNA initiation; wavenumber; surface tension.
3. (Σ) Summation of a series.

sig·ma

(sig'mă),
The 18th letter of the Greek alphabet, σ.

sigma

(sĭg′mə)
n.
A sigma factor.

sig′mate′ (-māt′) adj.

sigma

[sig′mə]
Σ, σ, and s, the eighteenth letter of the Greek alphabet.

σ

Abbreviation for standard deviation; reflection coefficient.

sig·ma

(σ,Σ) (sig'mă)
1. The 18th letter of the Greek alphabet.
2. (σ) reflection coefficient;standard deviation; a factor in prokaryotic RNA initiation; surface tension
3. (Σ) Summation of a series.

sig·ma

(sig'mă)
1. The 18th letter of the Greek alphabet (σ, Σ).
2. (σ) reflection coefficient; standard deviation; a factor in prokaryotic RNA initiation; surface tension
3. (Σ) Summation of a series.

sigma

the Greek letter σ or σ; the former frequently denotes a standard deviation, the latter is used in mathematics for the sum of the values of the term nominated.
References in periodicals archive ?
Lean Six Sigma is a lot different from the programs we tried to implement before.
While Six Sigma focuses on reducing product defects, Lean production techniques focus on reducing project cycle time, and on eliminating inefficiency in project cycles.
Design for Six Sigma (DFSS)--This strategy for product development uses a wide range of tools and methodology to provide project management, executives, and engineers the data, risk measures, and design deliverables for each gate in the integrated product development process.
Beginning in 2000, GE and Delahaye worked to test, refine and verify Delahaye's method and to demonstrate that it could provide the consistently reliable data required for the Six Sigma process.
Applying Six Sigma and digitization to this data-intensive analysis makes it exponentially more robust and increases your abilities to consolidate and improve efficiency.
Six Sigma and Process Excellence name their practitioners by borrowing from karate, a highly disciplined Japanese system of self-defense.
The free workshop will introduce five unique and complementary tools that support Six Sigma.
Six of the top consumer electronics manufacturers have chosen Sigma media processors to power their new Blu-ray players.
LAS VEGAS -- Sigma Designs (Nasdaq: SIGM), a leader in digital media processing for consumer electronics, announced that the wide range of digital media extender products being shown at this week's Consumer Electronics Show (CES 2007) are powered by Sigma's award winning media processors.
Sigma Designs Mini-PCI form factor Windeo[R] Reference Kit on Pika 8622L
UWB Solution Comprised of Taiyo Yuden's Multiple Antennas on its Reference Design Module with Sigma Designs' Windeo[R] Chipset
Sigma media processors provide a complete solution for media center ready TVs