- containing bivalent cobalt.
Origin of cobaltous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for 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).
- of or containing cobalt 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