[ ˌsɛrə'təʊnɪn ]
■ noun Biochemistry a compound present in blood platelets and serum, which constricts the blood vessels and acts as a neurotransmitter.
Origin
1940s: from serum + tonic + -in 1 .
[ ˌsɛrə'təʊnɪn ]
■ noun Biochemistry a compound present in blood platelets and serum, which constricts the blood vessels and acts as a neurotransmitter.
Origin
1940s: from serum + tonic + -in 1 .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004