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单词 porphyrin
释义

porphyrin

noun

por·​phy·​rin ˈpȯr-fə-rən How to pronounce porphyrin (audio)
: any of various compounds with a macrocyclic structure that consists essentially of four pyrrole rings joined by four =CH− groups
especially : one (such as chlorophyll or hemoglobin) containing a central metal atom and usually exhibiting biological activity

Example Sentences

Recent Examples on the Web The researchers’ gold-scrubber is based on an organic compound called a porphyrin. Scott K. Johnson, Ars Technica, 28 June 2020 The compounds, called porphyrins, had previously been shown to be adept at absorbing light and using that energy to convert oxygen molecules in the air to a reactive form known as singlet oxygen. Robert F. Service, Science | AAAS, 3 Sep. 2019

Word History

Etymology

International Scientific Vocabulary, from Greek porphyra purple

First Known Use

1910, in the meaning defined above

Medical Definition

porphyrin

noun

por·​phy·​rin ˈpȯr-fə-rən How to pronounce porphyrin (audio)
: any of various compounds with a structure that consists essentially of four pyrrole rings joined by four =CH− groups
especially : one (as chlorophyll or hemoglobin) containing a central metal atom and usually having biological activity
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更新时间:2025/3/16 9:50:34