serotoninnoun [ U ]
uk/ˌse.rəˈtəʊ.nɪn/us/ˌse.rəˈtoʊ.nɪn/a neurotransmitter (= a chemical in the body that carries messages from the brain) that helps you feel relaxed and happy
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Biochemistry
- adipose
- adrenalin
- amino acid
- amylase
- arnica
- chlorophyll
- enzyme
- fatty acid
- flavonoid
- fructose
- histamine
- lanolin
- oestrogen
- pheromone
- phloem
- phototropism
- polysaccharide
- protease
- tannin
- xylem
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