# erythrocythemia

> English word · Noun · IPA /əˌɹɪθroʊˌsaɪˈθiːmiə/

## Definitions
1. Synonym of polycythemia.

## Etymology
From erythrocyte + -emia, with /θ/ for euphony; akin to erythro- + -cyte + -emia and erythro- + -cyte + hem- + -ia; morphologically parallel with polycythemia.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/erythrocythemia