In simple terms, it is the steady movement of particles from regions where there are many of them to regions where there are a few of them. It is a natural trend for things to spread out down a Concentration Gradient. See diagram below.In scientific terms, DIFFUSION is the MOVEMENT OF PARTICLES from a region of HIGH CONCENTRATION to a region of LOW CONCENTRATION. Diffusion is a passive process, it does not require any energy for it to happen.t is a natural trend for things to spread out down a Concentration Gradient. See diagram below. In scientific terms, DIFFUSION is the MOVEMENT OF PARTICLES from a region of HIGH CONCENTRATION to a region of LOW CONCENTRATION.
Define anniversary: the annual recurrence of a date marking a notable event; broadly : a date that follows such an event â¦ â anniversary in a sentence the annual recurrence of a date marking a notable event; broadly : a date that follows such an event by a specified period of time measured inâ¦
Webster Dictionary(0.00 / 0 votes)Rate this definition: Centennial(adj) relating to, or associated with, the commemoration of an event that happened a hundred years before; as, a centennial ode. Centennial(adj) happening once in a hundred years; as, centennial jubilee; a centennial celebration.