monochromatic /ˌmɒnəʊˈkrəʊɪk/ (alsomonochroic)

• 1.  

  ADJ（形容词） (of light or other electromagnetic radiation) having only one wavelength 单色的; 单频的 (See also homochromatic)
• 2.  

  N（名词） a person who is totally colour-blind 全色盲者