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hexavalent

American  
[hek-suh-vey-luhnt] / ˈhɛk səˌveɪ lənt /

adjective

Chemistry.
  1. having a valence of six.


hexavalent British  
/ ˌhɛksəˈveɪlənt /

adjective

  1. Also: sexivalentchem having a valency of six

"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

Etymology

Origin of hexavalent

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Investigators allege both foundries in Paramount failed to conduct tests to ensure compliance with hexavalent chromium emission limits, did not properly clean areas near chrome-alloy-melting facilities and operated equipment without necessary permits.

From Los Angeles Times Oct. 13, 2025

Air samples collected Sept. 10-22 in the city of Paramount had “slightly elevated” levels of hexavalent chromium, according to the South Coast Air Quality Management District.

From Los Angeles Times Oct. 13, 2025

The tank holds hexavalent chromium, a reddish-brown solution widely used in plating that has been shown to cause lung cancer in humans if inhaled.

From New York Times Mar. 15, 2024

It is thought the curious feline had been in a vat of hexavalent chromium, a highly acidic and carcinogenic chemical which is orange and brown in colour.

From BBC Mar. 12, 2024

C, Si, Ge, Zr, Th, tetravalent; Ti, tetravalent and hexavalent; Sn, Pb, divalent and tetravalent; Ce, trivalent and tetravalent.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various

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