transcription, транскрипция: [ ˈter-ə-ˌdēn ]
noun
Etymology: International Scientific Vocabulary pter in + -idine
Date: 1943
: a yellow crystalline bicyclic base C 6 H 4 N 4 ; broadly : any of a class of compounds (as the pterins) that have the bicyclic ring system of pteridine and include especially various animal pigments