hexavalent

[ hek-suh-vey-luhnt ]

adjectiveChemistry.
  1. having a valence of six.

Origin of hexavalent

1
First recorded in 1885–90; hexa- + -valent

Words Nearby hexavalent

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use hexavalent in a sentence

  • There was also evidence of a contaminant researchers had linked to cancer, hexavalent chromium, which had previously been discovered in some California drinking wells by environmental advocate Erin Brockovich.

  • Because the factory makes planes, the EPA assumed that a fifth of the total chromium releases were hexavalent.

  • Georgia’s local public health departments offer a $122 well test that can detect a limited number of toxins, but not hexavalent chromium.

    The Coal Plant Next Door | by Max Blau for Georgia Health News | March 22, 2021 | ProPublica
  • On the other hand, Vengosh also has conducted research showing that ash from Wyoming-sourced Powder River Basin coal — the coal that Georgia Power uses at Plant Scherer — contains high levels of hexavalent chromium.

    The Coal Plant Next Door | by Max Blau for Georgia Health News | March 22, 2021 | ProPublica
  • Each one contained hexavalent chromium levels between 30 and 140 times higher than drinking-water guidelines in North Carolina, and between 100 and 490 times higher than those in California.

    The Coal Plant Next Door | by Max Blau for Georgia Health News | March 22, 2021 | ProPublica

British Dictionary definitions for hexavalent

hexavalent

/ (ˌhɛksəˈveɪlənt) /


adjective
  1. chem having a valency of six: Also: sexivalent

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