Word.ws English Dictionary

Plural of coccus

irregular plural

The plural of coccus is cocci.

Forms of coccus

Singularcoccus /ˈkɒ.kəs/
Pluralcocci /ˈkɒ.kaɪ/
Countablecountable

Cocci in a sentence

  • Mulberrylike clusters of cocci enveloped in mucoid capsular material that appears light against the denser, more refractive, albumin solution.1986, Michael Joseph Pelczar, Eddie Chin Sun Chan, Noel R Krieg, Microbiology. From the entry mulberrylike
  • Autopsy showed massive adrenal hemorrhage without inflammation, and showed proliferation of gram positive cocci and microthrombosis in the vessels of many organs.2015 June 1, Yukiko Hata et al., “An autopsy case of pneumococcal Waterhouse-Friderichsen syndrome with possible functional…. From the entry microthrombosis

Meaning of coccus

  1. noun Any approximately spherical bacterium.
  2. noun One of the carpels or seed-vessels of a dry fruit.

Full definition of coccus

Nouns ending in -us: plural -i

Questions about the plural of coccus

What is the plural of coccus?
The plural of coccus is cocci.
Is coccus countable?
Coccus is a countable noun.

Source and license

Adapted from Wiktionary: coccus (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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