(especially of securities) having dubious value; not financially sound:
a blue-sky stock.
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(modifier) of or denoting theoretical research without regard to any future application of its result: a blue-sky project
verb -skies, -skying, -skied
to theorize (about something that may not lead to any practical application)
Speculation; guesswork: That may sound great, but it’s just blue sky (1980s+)
Heroin: ex-psychiatric case from Bellevue with a minor in blue sky and toot (1980s+ Narcotics)
a law regulating the sale of securities, real estate, etc., especially such a law designed to prevent the promotion of fraudulent stocks.
blue sky software
a grayish, hairy, eastern Asian shrub, Caryopteris incana, of the verbena family, having clusters of showy, blue or bluish-purple flowers.
blue spot Historical Examples Hans Brinker Mary Mapes Dodge Swatty Ellis Parker Butler Peck’s Uncle Ike and The Red Headed Boy George W. Peck Principles of Decorative Design Christopher Dresser Sunday-School Success Amos R. Wells America’s War for Humanity Thomas Herbert Russell Children of the Desert Louis Dodge Life in the Confederate Army Arthur Peronneau […]