Mayo Ma·yo (mā'ō), William James. 1861-1939.
American surgeon who with his brother Charles Horace Mayo (1865-1939) founded the Mayo Clinic, a renowned medical center in Rochester, Minnesota.
An expert; an authority; a connoisseur: growing clientele of pizza mavins/A real advertising mavin must have thought that up
[1960s+; fr Yiddish fr Hebrew, ''understanding'']