单词	tetrapyrrole
释义	tetrapyrrole noun tet·​ra·​pyr·​role ˌte-trə-ˈpir-ˌōl  : a chemical group consisting of four pyrrole rings joined either in a straight chain or in a ring (as in chlorophyll) Example Sentences Recent Examples on the Web Chlorophyll is actually a generic name for a member of the tetrapyrrole family of organic compounds. Kevin Dayhoff, baltimoresun.com/maryland/carroll, 2 Oct. 2020 Word History First Known Use circa 1928, in the meaning defined above Medical Definition tetrapyrrole noun tet·​ra·​pyr·​role variants also tetrapyrrol ˌte-trə-ˈpi(ə)r-ˌōl  : a chemical group consisting of four pyrrole rings joined either in a straight chain (as in phycobilins) or in a ring (as in chlorophyll)
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