from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of or relating to the ordinal number matching the number 0 in a series.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective mathematics In the first position in a sequence whose elements are numbered starting at zero; the ordinal number corresponding to zero.
  • adjective Corresponding to a position preceding the first.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective preceding even the first


Sorry, no etymologies found.


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  • Denoting a term in a series that precedes the term otherwise regarded as the first term.

    July 7, 2018

  • I'm writing a novel. Zeroth draft complete.

    September 8, 2021