Blue-alert
(in military or civilian defense) an alert following the first, or yellow, alert, in which air attack seems probable.
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- Blue-and-the-gray
blue and the gray
- Blue-angel
blue heaven. a blue capsule or tablet containing the barbiturate amobarbital or its derivative.
- Blue-army
an organization maintaining a directory of tradesmen and checking on the quality of the service they provide.
- Blue-around-the-gills
blue around the gills
- Blue-asbestos
crocidolite. a bluish, asbestine variety of riebeckite. noun a blue fibrous amphibole mineral consisting of sodium iron silicate: a variety of asbestos used in cement products and pressure piping