ˈgwänəˌsēn, -_sə̇n noun
( -s )
Etymology: International Scientific Vocabulary, blend of guanine and ribose
: a crystalline nucleoside C 10 H 13 N 5 O 5 that is isolated especially from vetch seedlings or coffee leaves and berries, that is obtained by partial hydrolysis of ribonucleic acid, and that yields on hydrolysis guanine and ribose