Function: noun
Date: 1869
: a chloride of cobalt especially : the dichloride CoCl 2 that is blue when dehydrated, turns red in the presence of moisture, and is used to indicate humidity
Function: noun
Date: 1869
: a chloride of cobalt especially : the dichloride CoCl 2 that is blue when dehydrated, turns red in the presence of moisture, and is used to indicate humidity
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012