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[skwod-ruh n]
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  1. a portion of a naval fleet or a detachment of warships; a subdivision of a fleet.
  2. an armored cavalry or cavalry unit consisting of two or more troops, a headquarters, and various supporting units.
  3. (in the U.S. Air Force).
    1. the basic administrative and tactical unit, smaller than a group and composed of two or more flights.
    2. a flight formation.
  4. a number of persons grouped or united together for some purpose; group.
verb (used with object)
  1. to form into a squadron or squadrons; marshal or array in or as if in squadrons.

Origin of squadron

1555–65; < Italian squadrone, equivalent to squadr(a) square + -one augmentative suffix
Related formshalf-squad·ron, nounsub·squad·ron, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for squadron


    1. a subdivision of a naval fleet detached for a particular task
    2. a number of naval units usually of similar type and consisting of two or more divisions
  1. a cavalry unit comprising two or more troops, headquarters, and supporting arms
  2. the basic tactical and administrative air force unit comprising two or more flights
Abbreviation: sqn

Word Origin

C16: from Italian squadrone soldiers drawn up in square formation, from squadro square
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for squadron


1560s, from Italian squadrone, augmentative of squadra "battalion" (see squad).

Online Etymology Dictionary, © 2010 Douglas Harper