methemoglobin
noun
methemoglobin is spelled M-E-T-H-E-M-O-G-L-O-B-I-N: 13 letters. It appears about once in every 47 million words in written English, the 211,986th most frequent word form (wordfreq, 2021 data). As a noun, methemoglobin means “An oxidized form of hemoglobin, containing ferric rather than ferrous iron, that cannot transport oxygen” (English Wiktionary, September 2026). The plural of methemoglobin is methemoglobins.
How many letters and syllables are in methemoglobin?
| Letters | 13: M-E-T-H-E-M-O-G-L-O-B-I-N |
|---|---|
| In writing | about once in every 47 million words; the 211,986th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is methemoglobin?
Methemoglobin appears about once in every 47 million words in written English, the 211,986th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Forms of methemoglobin
- methemoglobins plural
- methaemoglobin
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does methemoglobin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An oxidized form of hemoglobin, containing ferric rather than ferrous iron, that cannot transport oxygen.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does methemoglobin come from?
From meta- + haemoglobin.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).