Meaning of DIFFUSION in English

[dif.fu.sion] n (14c) 1: the action of diffusing: the state of being diffused

2: prolixity, diffuseness 3 a: the process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement caused by thermal agitation and in dissolved substances move from a region of higher to one of lower concentration b (1): reflection of light by a rough reflecting surface (2): transmission of light through a translucent material: scattering

4: the spread of cultural elements from one area or group of people to others by contact

5: the softening of sharp outlines in a photographic image -- dif.fu.sion.al adj

Merriam-Webster English vocab.      Английский словарь Merriam Webster.