• synonyms


adjective Physical Chemistry.
  1. containing positive electricity; tending to migrate to the negative pole in electrolysis.
  2. assuming positive potential when in contact with a dissimilar substance.
  3. basic, as an element or group.
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Origin of electropositive

First recorded in 1840–50; electro- + positive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for electropositive

Historical Examples of electropositive

  • Part (D) showed that iron is electropositive to copper, as the current flowed from iron to copper in the cell.

    The Study of Elementary Electricity and Magnetism by Experiment

    Thomas M. St. John

British Dictionary definitions for electropositive


  1. having a positive electric charge
  2. (of an atom, group, molecule, etc) tending to release electrons and form positive ions or polarized bondsCompare electronegative
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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

electropositive in Science


  1. Tending to donate electrons and to form a positive ion. Metals are generally electropositive.
  2. Having a positive electric charge.
  3. Capable of acting as a positive electrode.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.