transport 2
noundomain: natural proc.
Princeton WordNet [ver.3.1]
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EnglishDefinition
an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
Hypernym
diffusion 1
noun
(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
EnglishHyponym
transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy
transport of a substance across a cell membrane by diffusion; expenditure of energy is not required
