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¦
1. the 100th anniversary (or the celebration of it) Familiarity information: CENTENNIAL used as a noun is very rare. â¢ CENTENNIAL (adjective) The adjective CENTENNIAL has 1 sense: 1. of or relating to or completing a period of 100 years. Familiarity information: CENTENNIAL used as an adjective is very rare.