ˈprünə.trə̇n noun
( -s )
Etymology: International Scientific Vocabulary pruni (from New Latin prunus, genus name of prunus emarginata ) + -trin (as in dextrin )
: a crystalline glucoside C 22 H 24 O 11 found in the bitter cherry of western and in the chokecherry of eastern No. America that on hydrolysis yields glucose and prunetin