MELATONIN

melatonin

(noun) hormone secreted by the pineal gland

Source: WordNet® 3.1


Etymology

Noun

melatonin (usually uncountable, plural melatonins)

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.

Source: Wiktionary



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Word of the Day

5 June 2025

UNDERLAY

(verb) raise or support (the level of printing) by inserting a piece of paper or cardboard under the type; “underlay the plate”


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Coffee Trivia

According to Guinness World Records, the largest coffee shop is the Al Masaa Café, which has 1,050 seats. The coffee shop was inaugurated in Riyadh, Saudi Arabia, on 13 August 2014.

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