intermedins

/ˌɪntərˈmidɪnz/
noun
  1. Plural form of intermedin; multiple types or instances of the hormone that stimulates melanin production.
    • Different intermedins are found in various species, each with slightly different effects on pigmentation.
    • Researchers discovered that intermedins from frogs and fish share many similarities.
    • The lab analyzed several intermedins to compare their chemical structures.