pigmentation pigmentation /ˌpɪgmənˈteɪʃən/

noun

1. Coloration of living tissues by pigment  ( pigmentation )
   coloration of living tissues by pigment
    The vibrant pigmentation of the butterfly's wings caught her attention.
   The vibrant pigmentation of the butterfly's wings caught her attention.
   
   
2. The deposition of pigment in animals, plants or human beings  ( pigmentation )
   the deposition of pigment in animals, plants or human beings