VARIOLATION
\vˌe͡əɹɪəlˈe͡ɪʃən], \vˌeəɹɪəlˈeɪʃən], \v_ˌeə_ɹ_ɪ__ə_l_ˈeɪ_ʃ_ə_n]\
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the obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox
By Princeton University
By Sir Augustus Henry
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Inoculation with unmodified small-pox.
By Willam Alexander Newman Dorland
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.