noun hering Ewald [ey-vahlt] /ˈeɪ vɑlt/ (Show IPA), 1834–1918, German physiologist and psychologist. 1
noun hering Ewald (ˈɛvalt). 1834–1918, German physiologist and experimental psychologist who studied vision and propounded the doctrine of nativism, the policy of favouring the natives of a country over the immigrants 0
