Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
- (obsolete) Primarily, a square; hence, a square body of troops; a body of troops drawn up in a square.
- "Those half-rounding quards Just met, and, closing, stood in squadron joined." -Milton.
- (military, army) A body of cavalry comprising two companies or troops, and averaging from one hundred and twenty to two hundred soldiers.
- (military, navy) A detachment of vessels employed on any particular service or station, under the command of the senior officer; as, the North Atlantic Squadron.
- (military, air force) A tactical air force unit; consists of at least two flights; multiple squadrons make up a group.
Derived terms 
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