COBALT BLUE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does cobalt blue mean? 

• COBALT BLUE (noun)
  The noun COBALT BLUE has 2 senses:

1. a shade of blue tinged with green

2. greenish-blue pigment consisting essentially of cobalt oxide and alumina

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

 Dictionary entry details 

• COBALT BLUE (noun)

Sense 1

Meaning:

A shade of blue tinged with green

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

aqua; aquamarine; cobalt blue; greenish blue; peacock blue; turquoise

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

blue; blueness (blue color or pigment; resembling the color of the clear sky in the daytime)

Sense 2

Meaning:

Greenish-blue pigment consisting essentially of cobalt oxide and alumina

Classified under:

Nouns denoting substances

Synonyms:

cobalt blue; cobalt ultramarine

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

pigment (dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.))

 Context examples 

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)

Now, by analyzing the structure of hibonite-based blue pigments, Subramanian has developed a way to match or surpass cobalt blue's vividness while using much less of the harmful carcinogenic cobalt ion or replacing it entirely.

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