Zwicky

[ tsvik-ee ]
/ ˈtsvɪk i /

noun

Fritz [frits] /frɪts/,1898–1974, Swiss astrophysicist, born in Bulgaria, in the U.S. after 1925.

British Dictionary definitions for zwicky

Zwicky
/ (ˈtsvɪkɪ) /

noun

Fritz. 1898–1974, Swiss astronomer and physicist, working in the US from 1925; noted for his study of supernovae