The four crossword solutions for the term 'Author Chemist' are Urey (4 letters), Lars (4 letters), OTTO (4 letters), and ANTOINE (7 letters). Harold Clayton Urey was an American physical chemist who won the Nobel Prize in Chemistry in 1934 for his discovery of deuterium. He also wrote several books on science and philosophy. Lars Onsager was a Norwegian-American theoretical physicist and physical chemist who received the Nobel Prize in Chemistry in 1968 for his work on the thermodynamics of irreversible processes. OTTO Hahn was a German chemist and pioneer in the fields of radioactivity and radiochemistry who won the Nobel Prize in Chemistry in 1944 for his discovery of nuclear fission. ANTOINE Lavoisier was a French nobleman and chemist who is considered to be the father of modern chemistry. He is best known for his discovery of the role oxygen plays in combustion, as well as his law of conservation of mass.