Word.ws English Dictionary

Plural of tetanus

irregular plural

The plural of tetanus is tetani or tetanuses.

Forms of tetanus

Singulartetanus /ˈtɛt.ən.əs/
Pluraltetani
tetanuses
Countablecountable and uncountable

Meaning of tetanus

  1. noun A serious and often fatal disease caused by the infection of an open wound with the anaerobic bacterium Clostridium tetani, found in soil and the intestines and faeces of animals.
  2. noun A state of muscle tension caused by sustained contraction arising from a rapid series of nerve impulses which do not allow the muscle to relax.

Full definition of tetanus

Nouns ending in -us: plural -i

Questions about the plural of tetanus

What is the plural of tetanus?
The plural of tetanus is tetani or tetanuses.
Which is correct, tetani or tetanuses?
Both are used. tetani is the more common of the two in English writing.
Is tetanus countable?
Tetanus is a countable and uncountable noun.

Source and license

Adapted from Wiktionary: tetanus (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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