Standard Lemma guide

polycythemia

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˌpɒlɪsaɪˈθiːmɪə/

1

noun

Meaning 1

A rare disorder in which the bone marrow produces an abnormally large amount of blood cells, often red blood cells.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, pathology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a disorder characterized by an abnormal increase in the number of red blood cells in the blood

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: blood disease, blood disorder

History

Etymology

From poly- + -cyte + -emia, with /θ/ for euphony; akin to poly- + -cyte + hem- + -ia; morphologically parallel with erythrocythemia.

Across languages

Translations

10 source translations are retained for this English entry.

  • Catalan: policitèmia — bone marrow disorder
  • Finnish: erytrosyteesi — bone marrow disorder
  • Finnish: polysytemia — bone marrow disorder
  • French: polyglobulie — bone marrow disorder
  • French: polycythémie — bone marrow disorder
  • Italian: policitemia — bone marrow disorder
  • Polish: nadkrwistość — bone marrow disorder
  • Portuguese: poliglobulia — bone marrow disorder
  • Romanian: policitemie — bone marrow disorder
  • Spanish: policitemia — bone marrow disorder