- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
chow
-
surprise
-
corn
-
memorabilia
-
mackinaw coat
-
acellular slime mould
-
outbid
-
forlorn
-
five
-
article
- Hide translation
serotonin
serotonin /sɝəˈtoʊnɪn/
noun
-
A neurotransmitter involved in e.g. sleep and depression and memory
(
5-hydroxytryptamine
, serotonin
)
a neurotransmitter involved in e.g. sleep and depression and memory