dispersion

dispersion

État de personnes ou de choses réparties sur une grande zone ou en plusieurs lieux.

En anglais simple : The state of being spread over a wide area or among many places.

• The population shows wide dispersion.
• The dispersion of settlements makes transport difficult.
• We measured the dispersion of particles across the surface.

Comment l'utiliser : dispersion of something (The dispersion of houses increases delivery costs.)

Synonymes : spread, scattering

Contraires : concentration

Expressions courantes : wide dispersion, geographic dispersion, dispersion of something

dispersion

Processus par lequel des personnes ou des choses se répartissent dans une zone ou dans différentes directions.

En anglais simple : The process of spreading people or things over an area or in different directions.

• Wind helps the dispersion of seeds.
• Rain slowed the dispersion of dust.
• The rapid dispersion of the crowd left the square empty.

Comment l'utiliser : dispersion of something (The dispersion of pollen depends on the wind.)

Synonymes : dispersal, scattering

Contraires : concentration

Expressions courantes : seed dispersion, dispersion of something, rapid dispersion

dispersion

Degré de différence entre les nombres d’un ensemble, ou entre ces nombres et leur moyenne.

En anglais simple : How widely numbers in a set differ from each other or from their average.

• The scores show high dispersion.
• We calculated the dispersion of the measurements.
• Lower dispersion means the values are closer together.

Synonymes : spread, variability

Expressions courantes : data dispersion, measure dispersion, high dispersion

dispersion

Séparation des ondes de fréquences différentes pendant leur déplacement, comme la lumière blanche qui se sépare en couleurs.

En anglais simple : The separation of waves with different frequencies as they travel, such as white light separating into colours.

• A prism causes dispersion of light.
• Dispersion separates white light into different colours.
• The experiment measured wave dispersion in the material.

Expressions courantes : optical dispersion, light dispersion, wave dispersion