Associations to the word «Melatonin»

Wiktionary

MELATONIN, noun. A hormone, related to serotonin, that is secreted by the pineal gland, and stimulates colour change in the skin of reptiles, and is involved in the sleep/wake and reproductive cycles in mammals
MELATONIN, noun. Any material similar in its chemistry and effect to the natural hormone.

Dictionary definition

MELATONIN, noun. Hormone secreted by the pineal gland.

Wise words

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats