flying squadron

from The Collaborative International Dictionary of English v.0.48
Squadron \Squad"ron\ (skw[o^]d"r[u^]n), n. [F. escadron,
   formerly also esquadron, Sp. escuadron, or It. squadrone. See
   {Squad}.]
   1. Primarily, a square; hence, a square body of troops; a
      body of troops drawn up in a square. [R.]
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            Those half-rounding quards
            Just met, and, closing, stood in squadron joined.
                                                  --Milton.
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   2. (Mil.) A body of cavalry comprising two companies or
      troops, and averaging from one hundred and twenty to two
      hundred men.
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   3. (Naut.) A detachment of vessels employed on any particular
      service or station, under the command of the senior
      officer; as, the North Atlantic Squadron. --Totten.
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   {Flying squadron}, a squadron of observation or practice,
      that cruises rapidly about from place to place. --Ham.
                                                  Nav. Encyc.
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