Real Dictionary

green
any of a group of colours, such as that of fresh grass, that lie between yellow and blue in the visible spectrum in the wavelength range 575–500 nanometres. Green is the complementary colour of magenta and with red and blue forms a set of primary colours
any of a large group of nitrogenous compounds of high molecular weight that are essential constituents of all living organisms. They consist of one or more chains of amino acids linked by peptide bonds and are folded into a specific three-dimensional shap
exhibiting or having the property of fluorescence [...]
the emission of light or other radiation from atoms or molecules that are bombarded by particles, such as electrons, or by radiation from a separate source. The bombarding radiation produces excited atoms, molecules, or ions and these emit photons as they
colour: Green is the colour of grass or leaves.