diffusion

• Nom désignant le processus par lequel des molécules ou particules se répartissent d'une zone de forte concentration vers une zone de faible concentration, utilisé notamment en physique, chimie et biologie ; peut aussi évoquer la propagation générale d'une substance, d'une idée ou d'une information.

A noun referring to the process by which molecules or particles spread from an area of high concentration to an area of low concentration, often used in physics, chemistry, and biology contexts.

indénombrable

1. Molecular movementB2formalscientific

   The process by which molecules move from an area of higher concentration to an area of lower concentration.

   Diffusion moléculaire

   • Diffusion of oxygen occurs across the cell membrane.
   • The perfume's diffusion through the room was rapid.
   • Scientists study diffusion to understand gas exchange in lungs.

   Synonymesdispersaldispersiondisseminationpermeationscatteringspread

2. Spread of lightB2formaltechnical

   The scattering or spreading of light rays, often to create a softer illumination.

   Diffusion de la lumière

   • The frosted glass causes diffusion of the light.
   • Diffusion in photography softens harsh shadows.
   • The lamp's design allows for even diffusion of the glow.

   Synonymesdispersionscatteringspreadspreading

   Antonymesconcentrationfocus

3. Cultural spreadC1formalpolitical

   The spread of cultural elements, ideas, or innovations from one society to another.

   Diffusion culturelle

   • The diffusion of technology has transformed global communication.
   • Cultural diffusion occurs through trade and migration.
   • Historians study the diffusion of religious beliefs across continents.

   Synonymescirculationdispersiondisseminationpropagationspreadtransmission