Definition of blue-coated in US English:

blue-coated

adjective

  • Of a person: that wears a blue coat, especially as part of a uniform. Of an animal: that has blue feathers, fur, etc.

Origin

Late 16th century; earliest use found in Edmond Ironside. From blue + coated.

Pronunciation

blue-coated

/ˈbluːkəʊtɪd/