[per-bawr-eyt, -bohr-]

noun Chemistry.

a salt of perboric acid, as sodium perborate, NaBO3⋅4H2O, used for bleaching, disinfecting, etc.

Origin of perborate

First recorded in 1880–85; per- + borate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for perborate

Historical Examples of perborate

  • The perborate should be added when the powder is perfectly dry or it loses its bleaching properties.

    Soap-Making Manual

    E. G. Thomssen

British Dictionary definitions for perborate



any of certain salts derived, or apparently derived, from perboric acid. Perborates are used as bleaches in washing powdersSee sodium perborate
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