karrer

noun

1. Paul,1889–1971, Swiss chemist, born in Russia: Nobel Prize 1937.

1. Russian-born Swiss chemist who researched the structure of carotene, which led to important discoveries concerning vitamin A. He also described the structures of riboflavin and vitamins E and K. For these achievements, he shared with British chemist Sir Norman Haworth the 1937 Nobel Prize for chemistry.