protoporphyrin

noun

pro·​to·​por·​phy·​rin ˌprō-tō-ˈpȯr-f(ə-)rən How to pronounce protoporphyrin (audio)
: a purple porphyrin acid C34H34N4O4 obtained from hemin or heme by removal of bound iron

Word History

Etymology

International Scientific Vocabulary

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of protoporphyrin was in 1925

Rhymes for protoporphyrin

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protoporcelain
protoporphyrin
protopresbyter
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Cite this Entry

“Protoporphyrin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protoporphyrin. Accessed 6 May. 2025.

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Medical Definition

protoporphyrin

noun
pro·​to·​por·​phy·​rin ˌprōt-ō-ˈpȯr-f(ə-)rən How to pronounce protoporphyrin (audio)
: a purple porphyrin acid C34H34N4O4 obtained from hemin or heme by removal of bound iron
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