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serotonin Definition

se·ro·tonin (sir′ə tōnin, ser′-)

noun

a complex amine, CHNO, found in blood, the brain, etc. or produced synthetically: it constricts the blood vessels and contracts smooth muscle tissue, and is important both as a neurotransmitter and a hormone

Etymology: sero- + ton(ic) + -in

serotonin Usage Examples

Converse of object

  • call: A chemical called serotonin plays a role in ' lifting ' the mood.
  • prevent: SSRIs work by preventing serotonin from being reabsorbed back into the nerve cells in the brain.
  • release: This helps prolong the mood lightening effect of any released serotonin.
  • produce: These produce slow burning carbohydrates that encourage the body to produce serotonin, the happy hormone.
  • include: It is one of a class of inhibitory neurotransmitters that include serotonin.
  • make: Tryptophan is an amino acid that the body needs to make serotonin.

Preposition: in

  • brain: SSRIs work by raising the levels of the natural chemical serotonin in the brain, which in turn tends to lift the mood.
  • body: It is not advised to take MDMA with an antidepressant which already breaks down serotonin in the body.

Adjective modifier

more: Put simply the more serotonin in the brain the higher a person's mood.

Modifies a noun

  • reuptake: Prozac is a famous example of a serotonin reuptake inhibiting drug.
  • re-uptake: Can you piece together the meaning of ' selective serotonin re-uptake inhibitor ' ?
  • inhibitor: The reports all related to the selective serotonin reuptake inhibitor group of drugs.
  • transporter: Autism and the serotonin transporter: the long and short of it.
  • antagonist: Several types of serotonin antagonists are under trial in IBS, some with encouraging results.
  • agonist: This medicine belongs to a group of drugs called serotonin agonists.

Noun used with modifier

  • neurotransmitter: It may also work by altering levels of the brain neurotransmitter serotonin.
  • brain: The brain chemical serotonin, whose levels drop during a migraine, is also involved.
  • hormone: It triggers an increase in the production of the antidepressant hormone serotonin which accounts for why we get that lift.
  • chemical: SSRIs work by raising the levels of the natural chemical serotonin in the brain, which in turn tends to lift the mood.
  • increase: These increase serotonin levels in your brain and so help to lessen symptoms of depression.

Browse dictionary entries near serotonin

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  10. sermonette
  1. serotype
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  4. serous membrane
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