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See more synonyms for polytomy on Thesaurus.com
noun, plural po·lyt·o·mies.
  1. the act or process of dividing into more than three parts.
  2. the state or condition of being so divided.
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Origin of polytomy

First recorded in 1860–65; poly- + -tomy
Related formspo·lyt·o·mous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018