Phrase guide

legionnaires' disease

noun · 3 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

Alternative letter-case form of Legionnaires' disease.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A form of severe pneumonia caused by legionella (bacteria of the genus Legionella).

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, pathology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: legionellosis, Legionnaires'

Antonyms: none provided

3

noun

Meaning 3

acute (sometimes fatal) lobar pneumonia caused by bacteria of a kind first recognized after an outbreak of the disease at an American Legion convention in Philadelphia in 1976; characterized by fever and muscle and chest pain and headache and chills and a dry cough

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: lobar pneumonia

History

Etymology

Named after the Legionnaires, the members of the American Legion, who were the first described victims of the disease.

Across languages

Translations

13 source translations are retained for this English entry.

  • Chinese Mandarin: 軍團病 /军团病 (jūntuánbìng) — infectious disease
  • Chinese Mandarin: 退伍軍人症 /退伍军人症 (tuìwǔjūnrénzhèng) — infectious disease
  • Chinese Mandarin: 退伍軍人病 /退伍军人病 (tuìwǔjūnrénbìng) — infectious disease
  • Dutch: legionairsziekte — infectious disease
  • Finnish: legioonalaistauti — infectious disease
  • Finnish: legionelloosi — infectious disease
  • Hungarian: legionáriusbetegség — infectious disease
  • Italian: legionellosi — infectious disease
  • Portuguese: legionela — infectious disease
  • Spanish: legionela — infectious disease
  • Spanish: legionelosis — infectious disease
  • Swedish: legionärssjuka — infectious disease
  • Turkish: lejyoner hastalığı — infectious disease