Word.ws English Dictionary

Plural of chlamydia

regular plural

The plural of chlamydia is chlamydias or chlamydiae.

Forms of chlamydia

Singularchlamydia /kləˈmɪd.i.ə/
Pluralchlamydias
chlamydiae
Countablecountable and uncountable

Meaning of chlamydia

  1. noun Any of several common, often asymptomatic, sexually transmitted diseases caused by the microorganism Chlamydia trachomatis.
  2. noun Any of various coccoid microorganisms of the genus Chlamydia that are pathogenic to humans and other animals.

Full definition of chlamydia

Questions about the plural of chlamydia

What is the plural of chlamydia?
The plural of chlamydia is chlamydias or chlamydiae.
Which is correct, chlamydias or chlamydiae?
Both are used. chlamydiae is the more common of the two in English writing.
Is chlamydia countable?
Chlamydia is a countable and uncountable noun.

Source and license

Adapted from Wiktionary: chlamydia (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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