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zoomelanin
zoomelanin n. 
/ˌzəʊə(ʊ)ˈmɛlənɪn/, /ˌzuəˈmɛlənən/ now rare a dark-coloured pigment found in animals, esp. in the feathers of certain birds; cf. melanin n. [After French zoomélanine (1857 or earlier). A. Bogdanov does not use the French term in his paper in Bull. de la Soc. Imperiale des Naturalistes de Moscou (1856) 29 459 ff.]
Brit. /ˌzuːə(ʊ)ˈmɛlənɪn/
, /ˌzuːə(ʊ)ˈmɛlənɪn//ˌzəʊə(ʊ)ˈmɛlənɪn/U.S. /ˌzoʊəˈmɛlənən/
, /ˌzoʊəˈmɛlənən//ˌzuəˈmɛlənən/ΘΚΠ
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zoomelanin1858
1858 National Mag. 4 128/1 M. Bogdanow surmises that the zoomelanine, or black pigment, may be identical with melanine, or black colouring-matter found in the choroid membrane.
1900 Victorian Naturalist 16 160 Such a specimen shows the complete absence of the pigment known as ‘zoomelanin’, and..the appearance is white.
1952 Laurens (Iowa) Sun 25 Sept. Zoomelanin—the black pigment found in the feathers of many birds.
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