Standard Lemma guide

leucocytosis

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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No pronunciation record was provided for this word.

1

noun

Meaning 1

A raised WBC (white blood cell) count, above the normal range.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, pathology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

an abnormal increase in the number of white blood cells in the blood as a result of infection (as in leukemia)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: leukocytosis

Antonyms: none provided

Broader terms: blood disease, blood disorder

History

Etymology

Etymology tree Proto-Indo-European *lewk- Proto-Indo-European *-ós Proto-Indo-European *lewkós Proto-Hellenic *leukós Ancient Greek λευκός (leukós)der. English leuco- Ancient Greek κῠ́τος (kŭ́tos)der. Latin cytader. English -cyte English leucocyte Proto-Indo-European *-tis Ancient Greek -τις (-tis) Ancient Greek -σῐς (-sĭs) Ancient Greek -ωσις (-ōsis)bor. New Latin -ōsislbor. English -osis English leucocytosis From leucocyte + -osis.

Across languages

Translations

4 source translations are retained for this English entry.

  • Czech: leukocytóza — raised white blood cell count
  • Dutch: leukocytose — raised white blood cell count
  • Spanish: leucocitosis — raised white blood cell count
  • Swedish: leukocytos — raised white blood cell count