Vaccine



GRE TOEFL

解释

GRE 红宝书

• n.牛痘苗, 疫苗
• ［英］ 牛痘苗, 疫苗 ( virulent organisms that is administered to produce or artificially increase immunity to a particular disease)
• ［记］ vacc ( 牛) +ine -> 牛痘苗

Webster Collegiate

noun

• Etymology: French vaccin, from vaccine cowpox, from New Latin vaccina (in variolae vaccinae cowpox), from Latin, feminine of vaccinus, adjective, of or from cows, from vacca cow; akin to Sanskrit va?a cow
• Date: 1813
• a preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular disease
• ? vaccine adjective

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