noun
- Alexander Ro·ber·tus [roh-bur-tuh s] /roʊˈbɜr təs/Baron of Trumpington, 1907–97, Scottish chemist: Nobel prize 1957.
- David,1855–1939, U.S. astronomer and teacher.
- a male given name.
noun
- Baron Alexander Robertus . 1907–97, Scottish chemist, noted for his research into the structure of nucleic acids: Nobel prize for chemistry 1957
masc. proper name, also a surname (late 12c.), from Middle English todde “fox,” a Northern English word of unknown origin.
- British chemist. He won a 1957 Nobel Prize for his study of nucleic acids and nucleotide structures.