diol m (plural diols) (organic chemistry) diol; Further reading âdiolâ in le TrÃ©sor de la langue franÃ§aise informatisÃ© (The Digitized Treasury of the French Language).
Noun. 1. law of diminishing returns-a law affirming that to continue after a certain level of performance has been reached will result in a decline in effectiveness. law of nature, law-a generalization that describes recurring facts or events in nature; the laws of thermodynamics. 1  Facebook.
Law of diminishing returns is a concept of economics, according to which as one begins to increase the input of the resources for production, a point will be reached beyond which output will not increase in the same proportion as that of input.