MELATONIN


Meaning of MELATONIN in English

[mel.a.to.nin] n [Gk melas black + -tonin (as in serotonin)] (1958): a vertebrate hormone of the pineal gland that produces lightening of the skin by causing concentration of melanin in pigment-containing cells

Merriam-Webster English vocab.      Английский словарь Merriam Webster.