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.
or chiefly British adrenalin /ÉËdrÉnÉlÉn/. Learner's definition of ADRENALINE. [noncount]. : a substance that is released in the body of a person who is feeling a strong emotion (such as excitement, fear, or anger) and that causes the heart to beat faster and gives the person more energy. â If you experience a rush of adrenaline or an adrenaline rush, you feel very excited and full of energy. I felt a rush of adrenaline as I walked onto the stage. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples. It was a thrilling experience that really got our adrenaline going.