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- Dictionarydiffusion/dɪˈfjuːʒn/
noun
- 1. the spreading of something more widely: "the rapid diffusion of ideas and technology"
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A process in which the substance moves through a semipermeable membrane or in a solution without any help from transport proteins. For example, bacteria deliver small nutrients, water and oxygen into the cytoplasm through simple diffusion.
Three-dimensional rendering of diffusion of purple dye in water. Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential.
Oct 4, 2019 · Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. The material that diffuses could be a solid, liquid or gas. Similarly, the medium in which diffusion occurs could also be in one of the three physical states.
Jul 2, 2024 · diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room.
How to use diffusion in a sentence. the state of being spread out or transmitted especially by contact : the action of diffusing; prolixity, diffuseness… See the full definition
DIFFUSION definition: 1. the action of spreading in many directions: 2. (of a gas or liquid) the process of spreading…. Learn more.
Mar 18, 2022 · Diffusion Definition. Diffusion is the net passive movement of molecules or particles from regions of higher to regions of lower concentration. For diffusion to occur there must be a concentration gradient. The dissimilarity in the amounts of solutes, particles, or molecules between the two regions will cause them to move between the two ...
Diffusion definition: the act of diffusing or state of being diffused. See examples of DIFFUSION used in a sentence.
(of gases and liquids) the process of spreading into a surrounding substance. biology. Diffusion is also the method by which substances pass in and out of cells through their membrane (= outside covering). physics.
(specialist) the act of slowly mixing a gas or liquid in a substance; the process in which this happens. the rate of diffusion of a gas. (formal) the act of making a light shine less brightly by spreading it in many directions. the diffusion of light by a convex surface. See diffusion in the Oxford Learner's Dictionary of Academic English.
