diffusion
US /dɪˈfjuː.ʒən/
UK /dɪˈfjuː.ʒən/
1.
the spreading of something more widely
:
•
The rapid diffusion of information through the internet has changed society.
•
We are seeing a diffusion of new technologies across various industries.
2.
the intermingling of substances by the natural movement of their particles
:
•
The diffusion of gas throughout the room was rapid.
•
Osmosis is a type of diffusion across a semi-permeable membrane.