# infectivity

> English word · Noun · frequency rank #93,829

## Definitions
1. The ability of a pathogen to establish an infection

## Etymology
From infective + -ity.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/infectivity