vaccine
n. Preparation, orig. Cowpox virus, used in vaccination. [latin vacca cow]
a. Of or pertaining to cows; pertaining to, derived from, or caused by, vaccinia; as, vaccine virus; the vaccine disease.
n. Preparation, orig. Cowpox virus, used in vaccination. [latin vacca cow]
a. Of or pertaining to cows; pertaining to, derived from, or caused by, vaccinia; as, vaccine virus; the vaccine disease.