tinbergen

noun

1. Jan [yahn] /yɑn/, 1903–94, Dutch economist: Nobel prize 1969.
2. his brotherNi·ko·laas [nik–uh-luh s; Dutch nee-koh-lahs] /ˈnɪk ə ləs; Dutch ˈni koʊˌlɑs/, Niko, 1907–1988, British ethologist, born in the Netherlands: Nobel Prize in medicine 1973.

noun

1. Jan (jæn). 1903–94, Dutch economist, noted for his work on econometrics. He shared (1969) the first Nobel prize for economics with Ragnar Frisch
2. his brother, Nikolaas (ˈnɪkələs). 1907–88, British zoologist, born in the Netherlands; studied animal behaviour, esp instincts, and was one of the founders of ethology; Nobel prize for physiology or medicine 1973