COBALT

Pronunciation (US):

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 Dictionary entry overview: What does cobalt mean? 

• COBALT (noun)
  The noun COBALT has 1 sense:

1. a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

  Familiarity information: COBALT used as a noun is very rare.

 Dictionary entry details 

• COBALT (noun)

Sense 1

Meaning:

A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition

Classified under:

Nouns denoting substances

Synonyms:

atomic number 27; Co; cobalt

Hypernyms ("cobalt" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Hyponyms (each of the following is a kind of "cobalt"):

cobalt 60 (a radioactive isotope of cobalt with mass number 60; a source of exceptionally intense gamma rays; used in radiation therapy)

Holonyms ("cobalt" is a substance of...):

cobaltite (a rare silvery-white mineral; important ore of cobalt)

smaltite (a grey mineral consisting of cobalt arsenide and nickel; an important source of cobalt and nickel)

 Context examples 

A radioactive salt of the metal cobalt.

(Cobaltous chloride Co-57, NCI Thesaurus)

Cobalt ion requiring two electrons to return to its elemental state.

(Cobaltous Cation, NCI Thesaurus/CRCH)

Radiation therapy using gamma radiation generated from cobalt-60.

(Cobalt-60 Radiation Therapy, NCI Thesaurus)

Cobalt sulfate is used in the electrochemical industries, as a drier in paints and inks, as a coloring agent, in storage batteries and as a supplement for Vitamin B12 deficiency.

(Cobaltous Sulfate, NCI Thesaurus)

These include iron, manganese, copper, iodine, zinc, cobalt, fluoride and selenium.

(Minerals, NIH)

Forms of the element cobalt found in foods.

(Dietary Cobalt, NCI Thesaurus/CRCH)

A radioactive form of the metal cobalt, which is used as a source of radiation to treat cancer.

(Cobalt 60, NCI Dictionary)

The process changed the electronic configuration and magnetic properties of the cobalt oxide sheet.

(Picoscience and a plethora of new materials, National Science Foundation)

Cobalt blue production, however, requires a significant amount of a cobalt salt that is hazardous to humans and the environment.

(Chemists find path to 'new blue' in meteorite minerals, National Science Foundation)

The researchers also used cobalt as their molecular catalyst, instead of platinum or silver.

(‘Artificial leaf’ successfully produces clean gas, University of Cambridge)