nounπShareThe act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion."The diffusion of the scent of freshly baked bread filled the entire house. "physicsscienceprocesschemistryChat with AIVocabulary GamePractice Reading
nounπShareThe scattering of light by reflection from a rough surface, or by passage through a translucent medium."The diffusion of light through the frosted window made the classroom bright and evenly lit. "physicsappearancematerialscienceChat with AIVocabulary GamePractice Reading
nounπShareThe intermingling of the molecules of a fluid due to random thermal agitation."The diffusion of the food coloring in the water happened slowly at first, but sped up as the water warmed. "physicschemistrybiologyscienceprocessChat with AIVocabulary GamePractice Reading
nounπShareThe spread of cultural or linguistic practices, or social institutions, in one or more communities."The diffusion of smartphone use has changed how students communicate with each other and their teachers. "culturelanguagesocietycommunicationhistoryChat with AIVocabulary GamePractice Reading
nounπShareThe gradual spread and adoption of goods or services."The diffusion of smartphones among students in the school has been rapid. "businesseconomytechnologycommunicationChat with AIVocabulary GamePractice Reading
nounπShareExchange of airborne media between regions in space in an apparently random motion of a small scale."The diffusion of perfume throughout the classroom made it smell floral, even though only one student was wearing it. "physicsscienceprocessChat with AIVocabulary GamePractice Reading
nounπShareThe movement of water vapor from regions of high concentration (high water vapor pressure) toward regions of lower concentration."After a hot shower, the diffusion of water vapor from the humid bathroom air into the drier hallway caused the mirror to slowly clear. "weathersciencephysicsenvironmentChat with AIVocabulary GamePractice Reading
