cerous

American

[seer-uhs] / ˈsɪər əs /

adjective

Chemistry.

containing trivalent cerium.

cerous British

/ ˈsɪərəs /

adjective

of or containing cerium in the trivalent 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 cerous

First recorded in 1860–65; cer(ium) + -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.

Cerium compounds may be recognized by the red precipitate of ceric hydroxide, which is formed when sodium hypochlorite is added to a colourless cerous salt.

From Project Gutenberg

Compounds of cerium with volatile acids yield dioxide on ignition; and this, on solution in hydrochloric acid, yields cerous chloride and chlorine.

From Project Gutenberg

A hydrated chloride of composition 2CeCl3�15H2O is also known, and is obtained when a solution of cerous oxide in hydrochloric acid is evaporated over sulphuric acid.

From Project Gutenberg

Double salts of cerous chloride with stannic chloride, mercuric chloride, and platinic chloride are also known.

From Project Gutenberg

By the addition of caustic soda to cerous salts, a white precipitate of cerous hydroxide is formed.

From Project Gutenberg

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