As nouns the difference between pineal and melatonin
is that pineal is pineal while melatonin is 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.
pineal
English
Adjective
(
en adjective)
In the shape of a pine cone.
Pertaining to the pineal gland.
Derived terms
* pineal body
* pineal eye
* pineal gland
* pineal hormone
Anagrams
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melatonin
Noun
(en-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
Any material similar in its chemistry and effect to the natural hormone.