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Adjective: blue-sky  'bloo,skI
  1. (of research or ideas) theoretical or speculative without immediate practical application
    "the company cannot afford to do blue-sky research"
Noun: blue sky  bloo skI
  1. The sky as viewed during daylight
    "he shot an arrow into the blue sky";
    - blue, blue air, wild blue yonder

Derived forms: blue skies

See also: noncommercial

Type of: sky

Encyclopedia: Blue-sky

Blue sky