Word.ws English Dictionary

infectivity

infectivity noun: the ability of a pathogen to establish an infection.

Noun

infectivity (countable and uncountable, plural infectivities)

  1. The ability of a pathogen to establish an infection
    • The reputation for low infectivity of rubella was probably based on failure to recognise rashless cases.1972, Charles Allan Birch, The House Physician's Handbook, page 70

Forms of infectivity

pluralinfectivities

Origin of infectivity

From infective + -ity.

Questions about infectivity

What does infectivity mean?
Infectivity means the ability of a pathogen to establish an infection.
What part of speech is infectivity?
Infectivity is a noun.
What is the plural of infectivity?
The plural of infectivity is infectivities.

Words near infectivity in the dictionary

  1. infectiousness
  2. infective
  3. infectiveness
  4. infectives
  5. infectivities
  6. infectivity
  7. infectological
  8. infectologist
  9. infectologists
  10. infectology
  11. infectome

Source and license

Adapted from Wiktionary: infectivity (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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