transcription, транскрипция: [ ˌte-trə-ˈpir-ˌōl ]
noun
Date: circa 1928
: a chemical group consisting of four pyrrole rings joined either in a straight chain or in a ring (as in chlorophyll)
TETRAPYRROLE
Meaning of TETRAPYRROLE in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003