Definitions for sally port
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Random House Webster's College Dictionary
sal′ly port`(n.)
a gate in a fortification from which a sortie may be launched.
Category: Fortification
Origin of sally port:
1640–50
Wiktionary
sally port(Noun)
A small door in a fort or a castle to enable a sally; a postern.
sally port(Noun)
An entryway controlled by two doors or gates, of which each must be closed before the other can open.
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"sally port." Definitions.net. STANDS4 LLC, 2013. Web. 23 May 2013. <http://www.definitions.net/definition/sally port>.

