婚こん姻いん色しょく

noun

nuptial coloration; breeding coloration

Biological term for the bright colors that fish, birds, and other animals develop during the breeding season.

• サケは産さん卵らん期きになると婚こん姻いん色しょくが現あらわれる。

  Salmon develop nuptial coloration when the spawning season arrives.

• 婚こん姻いん色しょくはオスに顕けん著ちょに見みられることが多おおい。

  Nuptial coloration is often more pronounced in males.