# vacciolate

> English word · Verb

## Definitions
1. To innoculate with cowpox (the vacciolous virus) in order to produce immunity to smallpox.

## Etymology
Coined in 1802 by Dr. John Walker, from vacciolous + -ate (verb-forming suffix).

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