tetrapyrrole

noun tet·ra·pyr·role \ ˌte-trə-ˈpir-ˌōl \

Definition of tetrapyrrole

: a chemical group consisting of four pyrrole rings joined either in a straight chain or in a ring (as in chlorophyll)

First Known Use of tetrapyrrole

circa 1928

in the meaning defined above

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Medical Dictionary

tetrapyrrole

noun tet·ra·pyr·role
variants: also tetrapyrrol play \ˌte-trə-ˈpi(ə)r-ˌōl\

medical Definition of tetrapyrrole

: 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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