nonheme

adjective

non·​heme ˌnän-ˈhēm How to pronounce nonheme (audio)
: not containing or being iron that is bound in a porphyrin ring like that of heme
nonheme iron
nonheme proteins

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of nonheme was in 1950

Dictionary Entries Near nonheme

Cite this Entry

“Nonheme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonheme. Accessed 23 Apr. 2024.

Medical Definition

nonheme

adjective
non·​heme
variants or chiefly British nonhaem
: not containing or being iron that is bound in a porphyrin ring like that of heme
the ferredoxins are nonheme iron proteins
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