Definition of metachromatism in English:

metachromatism

noun

  • 1Change of the colour of hair, skin, etc. Now rare.

  • 2Histology and Biology= "metachromasia".

Origin

Late 19th century (in an earlier sense). From meta- + chromatism; in later use in sense 1 probably after French métachromatisme, although in quot. 1876 at sense 1a apparently an independent formation.

Pronunciation

metachromatism

/ˌmɛtəˈkrəʊmətɪz(ə)m/