diffusion(redirected from Fick's first law of diffusion)
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In the process of diffusion of a single solute, a concentration of molecules on one side of a membrane (top) will move through a membrane (center) until there is equilibrium on both sides (bottom).
1. The process of diffusing or the condition of being diffused: the diffusion of new technology around the world.
a. The scattering of incident light by reflection from a rough surface.
b. The transmission of light through a translucent material.
c. The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion.
3. The spread of linguistic or cultural practices or innovations within a community or from one community to another.
1. the act or process of diffusing or being diffused; dispersion
3. (General Physics) physics
a. the random thermal motion of atoms, molecules, clusters of atoms, etc, in gases, liquids, and some solids
b. the transfer of atoms or molecules by their random motion from one part of a medium to another
4. (General Physics) physics the transmission or reflection of electromagnetic radiation, esp light, in which the radiation is scattered in many directions and not directly reflected or refracted; scattering
5. (General Physics) physics Also called: diffusivity the degree to which the directions of propagation of reverberant sound waves differ from point to point in an enclosure
6. (Anthropology & Ethnology) anthropol the transmission of social institutions, skills, and myths from one culture to another
1. the act of diffusing or the state of being diffused.
2. prolixity of speech or writing.
a. an intermingling of particles resulting from random thermal agitation, as in the dispersion of a vapor in air.
b. a reflection or refraction of light or other radiation from an irregular surface or an erratic dispersion through a surface.
4. a soft-focus effect in a photograph or film, achieved by placing a gelatin or silk plate in front of a light or lens or by the use of filters.
5. the transmission of elements or features of one culture to another by nonviolent contact.
1. The movement of ions or molecules from an area of higher concentration to an area of lower concentration. Small molecules and ions can move across a cell membrane by diffusion. Compare osmosis.
a. The reflection of light off an irregular surface in all directions.
b. The process by which light passes through a transparent substance.
3. The spreading out of light or other radiation through an area so that its intensity becomes more or less uniform.
1. The process of rapid random movement of the particles of a liquid or gas which eventually form a uniform mixture.
2. The mixing of substances due to the motion of their particles.
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|Noun||1.||diffusion - (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration|
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
osmosis - (biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
transport - an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
|2.||diffusion - the spread of social institutions (and myths and skills) from one society to another|
mythology - myths collectively; the body of stories associated with a culture or institution or person
|3.||diffusion - the property of being diffused or dispersed|
|4.||diffusion - the act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge"|
diffusion[dɪˈfjuːʒən] N [of light, heat, information, ideas] → difusión f
1. proceso de difundir;
2. diálisis a través de una membrana.