Dictionary.com
definitions
  • synonyms

cobaltous

[koh-bawl-tuh s]
adjective
  1. containing bivalent cobalt.
Show More

Origin of cobaltous

First recorded in 1860–65; cobalt + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cobaltous

Historical Examples of cobaltous

  • The cobaltous oxide was found to be much less active, requiring the above doses to be increased about two-thirds.

    Poisons: Their Effects and Detection

    Alexander Wynter Blyth

  • Cobaltous hydroxide, Co(OH)2, is formed when a cobaltous salt is precipitated by caustic potash in the absence of air.

  • For the action of ammonia on the cobaltous salts in the presence of air see Cobaltammines (below).

British Dictionary definitions for cobaltous

cobaltous

adjective
  1. of or containing cobalt in the divalent state
Show More
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