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)
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Chlorophyll is actually a generic name for a member of the tetrapyrrole family of organic compounds.
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Kevin Dayhoff, baltimoresun.com/maryland/carroll, 2 Oct. 2020
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Kevin Dayhoff, baltimoresun.com/maryland/carroll, 2 Oct. 2020
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“Tetrapyrrole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetrapyrrole. Accessed 3 Nov. 2025.
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tetrapyrrole
noun
tet·ra·pyr·role
variants
also tetrapyrrol
: 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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