2dif·fuse 
/dɪˈfju:z/ verb
dif·fus·es; dif·fused; dif·fus·ing /dɪˈfju:z/ verb 1 a : to spread out : to move freely throughout a large area [no obj] ▪ The heat from the radiator diffuses throughout the room. [+ obj] ▪ The heat was diffused throughout the room.
b : to exist or be known throughout an area [no obj] ▪ Their culture gradually diffused [=spread] westward. [+ obj] ▪ diffusing their ideas 2 [+ obj] : to cause (light) to be soft and spread out
▪ The photographer uses a screen to diffuse the light. ▪ an area of diffused light
b : to exist or be known throughout an area [no obj] ▪ Their culture gradually diffused [=spread] westward. [+ obj] ▪ diffusing their ideas
▪ The photographer uses a screen to diffuse the light. ▪ an area of diffused light
— dif·fu·sion /dɪˈfju:ʒən/ noun [noncount]
/dɪˈfju:ʒən/ noun [noncount]
