Search Result for "pigmentation": 
Wordnet 3.0

NOUN (2)

1. the deposition of pigment in animals or plants or human beings;

2. coloration of living tissues by pigment; 



The Collaborative International Dictionary of English v.0.48:

Pigmentation \Pig`men*ta"tion\, n. (Physiol.)
   A deposition, esp. an excessive deposition, of coloring
   matter; as, pigmentation of the liver.
   [1913 Webster]


WordNet (r) 3.0 (2006):

pigmentation
    n 1: the deposition of pigment in animals or plants or human
         beings
    2: coloration of living tissues by pigment [ant:
       depigmentation]