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manganous

American  
[mang-guh-nuhs, man-gan-uhs, mang-] / ˈmæŋ gə nəs, mænˈgæn əs, mæŋ- /

adjective

Chemistry.
  1. containing bivalent manganese.


manganous British  
/ ˈmæŋɡənəs, mænˈɡænəs /

adjective

  1. of or containing manganese in the divalent state

"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 manganous

First recorded in 1815–25; mangan(ese) + -ous

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.

Manganese takes the sulfur away from the iron and the manganous sulfide which is formed collects in small globules throughout the metal without weakening it.

From Time Magazine Archive

It is, however, possible to obtain a satisfactory, although somewhat fugitive end-point in the presence of manganous sulphate and phosphoric acid.

From An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes by Talbot, Henry P.

The details of the method are as follows: A solution of manganous sulphate slightly stronger than No. 1 is prepared.

From Scientific American Supplement, No. 561, October 2, 1886 by Various

One molecule of permanganate equals one molecule of nitric oxide when manganous sulphate is used, since no part of the permanganate employed in this method is reduced below the superoxide condition.

From Scientific American Supplement, No. 561, October 2, 1886 by Various

It will therefore be sufficient to state the average composition, which is:—ferrous oxide, manganous oxide, potash, lime, boracic acid, magnesia, soda, lithia, and water.

From The Chemistry, Properties and Tests of Precious Stones by Mastin, John