VocabauraVOCABAURA

haemoglobin

noun

Simple meaning

The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body.

Pronunciation

Say it like this:

hehmuhglohbuhn

Say the bold part a little louder.

US device voice
IPA pronunciation (US)

ˈhɛməɡˈloʊbən

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. commonwealth

    The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin), and haem (a porphyrin ring with an atom of iron at its centre).

Word at a Glance

Difficulty
C2 · Proficient (estimated)
Frequency
Rare
Formality
Technical

Word Aura™

How this word commonly comes across.

This meaning: The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin), and haem (a porphyrin ring with an atom of iron at its centre).

Used this way, haemoglobin is a specialist word that usually carries little praise or criticism of its own. This is a scientific use: it names something precisely within a field of study, so it appears in research and teaching more than in conversation.

Emotional tone
Neutral
Formality
Specialist/technical
Intensity
Not strongly marked
How common
Specialized
Connotation
Clinical and technical
Usage feel
Technical and specialized

Where it naturally appears

  • Science
  • Academic writing
  • Technical/specialist writing

Usage note

In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.

Nearby words

  • hemoglobin , used mainly in Regional English

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

Share your sentence

Write your own example sentence using “haemoglobin”. We review each one before it appears.

Common Patterns and Combinations

How this word naturally appears with others.

haemoglobin concentrationhaemoglobin levelreduced haemoglobinhaemoglobin contentcell haemoglobinhaemoglobin moleculenormal haemoglobinhuman haemoglobin

Tap the highlighted word to open its own entry.

Related Words

Connected to the same idea, not synonyms.

More about this wordSynonyms, forms, origin

Synonyms

Sense: iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body

hemoglobinRegional

Use This Word

See how this word sounds in a real sentence.

Ask Vocabaura

Understand the word your way.

What Does It Mean Here?

Words can change meaning depending on context.

Use it yourself

Knowing “haemoglobin” starts when you use it. Pick a next step, all free.

Know the meaning? Practice using it in a real situation, free, no credits.

Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.