from The Century Dictionary and Cyclopedia
- n. The act or process of nitrogenizing, or impregnating with nitrogen; impregnation or inoculation with nitrogen; nitrification.
Sorry, no etymologies found.
Of course, Guinness wouldn’t be Guinness without its creamy crown of foam, but this didn’t start until relatively recently: 1959 to be exact, when Guinness introduced a sophisticated blend of nitrogen and carbon gases to the pour – a process known as nitrogenization – to create the cascade that results in Guinness’ unique and distinctive appearance.
n. - nitrogenization of soil by bacteria. azofier,