Anaemia or anemia?
anaemia is a noun meaning “Alternative spelling of anemia”; anemia is a noun meaning “A medical condition in which the capacity of the blood to transport oxygen to…”. Wiktionary gives them as spellings of the same word. In written English (wordfreq, 2021 data) anemia is about 4.6 times as common as anaemia.
What is the difference between anaemia and anemia?
| anaemia | anemia | |
|---|---|---|
| Part of speech | noun | noun |
| Meaning | CommonwealthAlternative spelling of anemia | USA medical condition in which the capacity of the blood to transport oxygen to the tissues is reduced, either because of too few red blood cells, or because of… A disease or condition that has anemia as a symptom |
| Example | none recorded | Pernicious anemia and sickle-cell anemia are two anemias |
| Forms | anaemias | anemias, anemiae, anemiæ |
| Pronunciation | not recorded | /əˈnimi.ə/ |
| In writing | about once in every 3 million words | 1.5 times per million words |
Sources: anaemia and anemia in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of anaemia and anemia
anaemia
- 1
CommonwealthAlternative spelling of anemia
anemia
- 1
USA medical condition in which the capacity of the blood to transport oxygen to the tissues is reduced, either because of too few red blood cells, or because of too little hemoglobin, resulting in…
- 2
A disease or condition that has anemia as a symptom
Pernicious anemia and sickle-cell anemia are two anemias
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, anaemia or anemia?
anaemia appears about once in every 3 million words; anemia 1.5 times per million words.
anaemia about once in every 3 million wordsanemia 1.5 times per million words
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How many people search anaemia vs anemia?
“anaemia vs anemia” is searched about 10 times a month on Bing (Google reports it together with close variants, so it has no figure of its own) in the United States.
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.