Noun: variolation ,veh-ree-u'ley-shun
- The obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox
"Variolation was a precursor to modern vaccination techniques";
- variolization, variolisation [Brit]
Derived forms: variolations
Type of: inoculating, vaccinating
Encyclopedia: Variolation