Definition of polychromatism in English:

polychromatism

noun

  • See polychromatic

    • ‘Stephens concluded that the two forms may have resulted from selected polychromatism facilitated by the somewhat insular nature of the Cape San Lucas area.’
    • ‘The maintenance of female polychromatism in the damselfly Ischnura graellsii is addressed by reanalysing data from two natural populations.’

Pronunciation

polychromatism

/ˌpɒlɪˈkrəʊmətɪz(ə)m/