Transcription
-
- US Pronunciation
- US IPA
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- [mel-uh-toh-nin]
- /ˌmɛl əˈtoʊ nɪn/
-
- US Pronunciation
- US IPA
-
- [mel-uh-toh-nin]
- /ˌmɛl əˈtoʊ nɪn/
Definitions of melatonin word
- noun melatonin a hormone secreted by the pineal gland in inverse proportion to the amount of light received by the retina, important in the regulation of biorhythms: in amphibians, it causes a lightening of the skin. 1
- noun melatonin A hormone secreted by the pineal gland that inhibits melanin formation and is thought to be concerned with regulating the reproductive cycle. 1
- noun melatonin the hormone-like secretion of the pineal gland, causing skin colour changes in some animals and thought to be involved in reproductive function 0
- noun melatonin a hormone, C13H16N2O2, produced by the pineal body, that lightens skin pigmentation, inhibits estrus, etc.: its secretion is inhibited by sunlight 0
- noun melatonin 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. 0
- noun melatonin Any material similar in its chemistry and effect to the natural hormone. 0
Information block about the term
Origin of melatonin
First appearance:
before 1955 One of the 4% newest English words
1955-60; < Greek mélā(s) black + tone + -in2
Historical Comparancy
Parts of speech for Melatonin
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
melatonin popularity
A common word. It’s meaning is known to most children of preschool age. About 73% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".
melatonin usage trend in Literature
This diagram is provided by Google Ngram ViewerTop questions with melatonin
- what is melatonin?
- how much melatonin should i take?
- how much melatonin?
- how much melatonin to take?
- how long does melatonin last?
- what does melatonin do?
- how much melatonin is too much?
- how does melatonin work?
- when to take melatonin?
- how much melatonin can i take?
- what is melatonin used for?
- how much melatonin can you take?
- how to take melatonin?
- how much melatonin is safe?
- how long does it take for melatonin to start working?
See also
Matching words
- Words starting with m
- Words starting with me
- Words starting with mel
- Words starting with mela
- Words starting with melat
- Words starting with melato
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- Words starting with melatonin