launch window

launch window  {n.},  {Space English},  {informal}
1. A period of time when the line-up of planets, Sun, and Moon are such as to make favorable conditions for a specific space launch.
The mission was canceled until the next launch window which will be exactly six weeks from today.
2. A favorable time for starting some kind of ambitious adventure.
My next launch window for a European trip isn't until school is over in June.
Categories: Space English informal noun time

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