noun🔗ShareAn infection of cowpox."After working with cattle showing signs of cowpox, the veterinarian contracted vaccinia, a common risk in her profession. "medicinevirusdiseaseChat with AIVocabulary GamePractice Reading
noun🔗Share(by extension) The virus which causes this infection."Scientists used vaccinia, a close relative of the smallpox virus, to create the smallpox vaccine. "virusdiseasemedicinebiologymicroorganismChat with AIVocabulary GamePractice Reading