n [ sing ]
a medicine used to prevent polio (= a serious disease affecting the nervous system), developed in 1954 by the US scientist Jonas Salk (1914–95).
n [ sing ]
a medicine used to prevent polio (= a serious disease affecting the nervous system), developed in 1954 by the US scientist Jonas Salk (1914–95).
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005