- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
sir walter raleigh
-
acanthoscelides
-
acanthion
-
going
-
penis
-
diss
-
pansexual
-
tuple
-
abscessed tooth
-
tissue
- 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