n. The inoculation of a person with smallpox so as to induce a mild form of the illness and subsequent immunity to it.
the GNU version of the Collaborative International Dictionary of English
n. Inoculation with smallpox.
The Century Dictionary and Cyclopedia
n. Inoculation with the virus of smallpox. See inoculation, Also variolization.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox
Word Usage
"As the virus existed possibly as far back as 1000 BCE, and as the first attempts at vaccination called variolation were in the 10th century, to claim that the colonists didn't understand the disease and didn't know what they were doing..."