Diffusion (noun). the act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion. Diffusion (noun). the act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body.
Learner's definition of EXCITEMENT. 1. [noncount] : a feeling of eager enthusiasm and interest : the state of being excited. Our excitement was building/growing/mounting as the end of the game approached. His hands shook with excitement. The child cried out in excitement.
There is a buzz of excitement inside the stadium.a flurry of excitement (=an occasion when there is suddenly a lot of excitement about something)The takeover bid has caused a flurry of excitement in the City.a ripple of excitement (=a feeling of excitement that spreads through a group of people)A ripple of excitement went through the audience as the ...