haemoglobin

/ˌhimoʊˈɡloʊbɪn/

//ˌhimoʊˈɡloʊbɪn// noun

"haemoglobin" is a 11-letter English headword indexed on PlainSpell.

The verdict

“haemoglobin” is uncommon English (frequency #68,275 among 23,837 “H” headwords), classed as a noun. The kind of spelling people second-guess.

#68,275
frequency rank, English
23,837
“H” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Alternative spelling of hemoglobin.

Corpus desk

Index EN-haemoglobin · haemoglobin · English

haemoglobin · rank #68,275 · 0 variants · 0 confusables

  • FREQ-RARE #68,275
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 23,837
  • PHOTO-FINISH Haase

Nearest frequency peer: Haase (-2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Frequency neighbourhood for “haemoglobin”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “haemoglobin” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of May 6, 2026
Key facts for haemoglobin
PropertyValue
Headwordhaemoglobin
LanguageEnglish
Part of speechNoun
IPA/ˌhimoʊˈɡloʊbɪn/
Letters11
Frequency rank#68,275
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “haemoglobin” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). haemoglobin lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

haemoglobin is uncommon English at frequency #68,275 among 23,837 “H” headwords, classed as anoun, transcribed /ˌhimoʊˈɡloʊbɪn/. Rarity is why readers land here mid-draft. Gloss: "Alternative spelling of hemoglobin.".

Zero misspellings are on record for haemoglobin in our index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From haemo- + globin. The correct English form is haemoglobin, spelled H-A-E-M-O-G-L-O-B-I-N.

Definition

  1. 1
    Alternative spelling of hemoglobin.

Etymology

From haemo- + globin.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "haemoglobin"?
"haemoglobin" is spelled H-A-E-M-O-G-L-O-B-I-N. The IPA pronunciation is /ˌhimoʊˈɡloʊbɪn/.
What does "haemoglobin" mean?
As a noun, "haemoglobin" means: Alternative spelling of hemoglobin.
How do you pronounce "haemoglobin"?
The IPA (International Phonetic Alphabet) transcription for "haemoglobin" is /ˌhimoʊˈɡloʊbɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "haemoglobin"?
From haemo- + globin. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "haemoglobin", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list