monochromatic

/ˌˈmɑnoʊkrəˌmædɪk/

/mɒnəkrəʊˈmætɪk/

If everything in your room is pink, your room is monochromatic — all of one color.

In physics, monochromatic describes light that has the same wavelength, so it is one color. Broken into Greek roots, the word shows its meaning: monos means "one," and khroma means "color." Things that are truly monochromatic are rare — examine the green leaves of trees, and you'll see lots of different shades.

Definitions of monochromatic

1. adjective

   having or appearing to have only one color
   synonyms: monochrome, monochromic, monochromous

   colored, colorful, coloured

   having color or a certain color; sometimes used in combination
2. adjective

   (of light or other electromagnetic radiation) having only one wavelength
   “monochromatic light”

   synonyms: homochromatic

   antonyms:

   polychromatic

   (of light or other electromagnetic radiation) composed of more than one wavelength
3. adjective

   of or relating to monochromatism