sigma

BrE /ˈsɪɡmə/ AmE /ˈsɪɡmə/

noun en → es

1 LETTER [noun] C2

the 18th letter of the Greek alphabet, written as Σ or σ

sigma (letra griega)

Collocations Greek sigma

  • The word 'statistics' starts with a sigma.

    La palabra 'estadísticas' comienza con una sigma.

2 SYMBOL [noun] C1

a symbol used in mathematics and statistics to represent standard deviation or summation

sigma (símbolo matemático)

Collocations standard deviation sigma

  • The formula uses a sigma to denote standard deviation.

    La fórmula usa un sigma para denotar la desviación estándar.

3 SIGMA-ALPHA [noun] C2

a type of protein found in the cell membrane of bacteria, involved in antibiotic resistance

sigma (proteína)

Collocations Sigma factor

  • The bacteria's resistance is due to a sigma protein.

    La resistencia de la bacteria es debido a una proteína sigma.

4 SIGMA-DELTA [noun] C1

a type of analog-to-digital converter used in audio and telecommunications equipment

sigma delta (convertidor)

Collocations Sigma-Delta ADC

  • The device uses a sigma-delta converter for high-quality audio.

    El dispositivo usa un convertidor sigma-delta para alta calidad de audio.

5 SIGMA-ALPHA [noun] C2

a type of star cluster in astronomy, characterized by a specific pattern of stars

sigma (constelación)

Collocations Sigma Orionis

  • The constellation includes a sigma cluster.

    La constelación incluye un grupo sigma.

6 SIGMA-DELTA [noun] C1

a type of filter used in signal processing to remove noise from a signal

sigma delta (filtro)

Collocations Sigma-Delta Filter

  • The system uses a sigma-delta filter to clean up the signal.

    El sistema usa un filtro sigma-delta para limpiar la señal.

7 SIGMA-ALPHA [noun] C2

a type of enzyme involved in DNA replication and repair

sigma (enzima)

Collocations Sigma factor

  • The enzyme plays a role in DNA replication.

    La enzima juega un papel en la replicación del ADN.

8 SIGMA-DELTA [noun] C2

a type of algorithm used in machine learning and data analysis to improve accuracy

sigma delta (algoritmo)

Collocations Sigma-Delta Algorithm

  • The algorithm uses a sigma-delta method to enhance precision.

    El algoritmo usa un método sigma-delta para mejorar la precisión.