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launch (2)
launch complex
launch into
launch out
launch pad
launch party
launch shoe
launch vehicle
launch window
launcher
launder
launderette
laundress
laundrette
Laundromat
laundry
laundry basket
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World English Dictionary
Dictionnaire Français

launch window
launch win·dow (plural launch win·dows)


noun 
Definition:
 
limited period for launching something: the restricted period during which a rocket or other projectile can be successfully launched
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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