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

We should have a great fewer disputes in the world if words were taken for what they are, the signs of our ideas only, and not for things themselves.
John Locke