If an object is encrusted with something, its surface is covered with a layer of that thing. a blue uniform coat that was thickly encrusted with gold loops. covered with a hard layer of something encrusted with/in
To cover or line with a crust, or hard coat; to form a crust on the surface of; as, iron incrusted with rust; a vessel incrusted with salt; a sweetmeat incrusted with sugar