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  1. Alexander Ro·ber·tus [roh-bur-tuh s] /roʊˈbɜr təs/Baron of Trumpington, 1907–97, Scottish chemist: Nobel prize 1957.
  2. David,1855–1939, U.S. astronomer and teacher.
  3. a male given name.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for todd

Contemporary Examples

Historical Examples

  • He shook hands with them all again, including Mr. Todd, who was going with him.

  • He laughed most of the way home, and Mr. Todd walked at his side in amazement.

  • He is going to be with Mrs. Todd at the Enchanted Kingdom, and so we'll probably see him.


    Dorothy Whitehill

  • "Go with Mrs. Todd, dearie," Martha directed as she had always done.


    Dorothy Whitehill

  • At the end of that period, Dr. Todd attained his legal majority.

    The Pioneers

    James Fenimore Cooper

British Dictionary definitions for todd


  1. Baron Alexander Robertus . 1907–97, Scottish chemist, noted for his research into the structure of nucleic acids: Nobel prize for chemistry 1957
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for todd


masc. proper name, also a surname (late 12c.), from Middle English todde "fox," a Northern English word of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper

todd in Medicine


  1. British chemist. He won a 1957 Nobel Prize for his study of nucleic acids and nucleotide structures.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.