Source:http://linkedlifedata.com/resource/umls/id/C0221205
NCI: The hue of that portion of the visible spectrum lying between orange and green, evoked in the human observer by radiant energy with wavelengths of approximately 570 to 590 nanometers; any of a group of colors of a hue resembling that of ripe lemons and varying in lightness and saturation. (American Heritage Dictionary - Bartelby.com)