əˈdenəˌsēn, -_sə̇n noun
( -s )
Etymology: International Scientific Vocabulary, blend of adenine and ribose; originally formed as German adenosin
: a crystalline nucleoside C 10 H 13 N 5 O 4 isolated from various tissues, especially muscle, and obtained by partial hydrolysis of ribonucleic acid, yielding on hydrolysis adenine and ribose and having a vasodilator effect in the vertebrate system; 6-amino-9- d -ribosyl-purine