1. noun /ˈdʒɛɾəsən,ˈdʒɛtɪsən,ˈdʒɛtɪsən,ˈdʒɛtɪsən,ˈdʒɛtəsən/
a) Collectively, items that have been or are about to be ejected from a boat or balloon.
b) The action of jettisoning items.
2. verb /ˈdʒɛɾəsən,ˈdʒɛtɪsən,ˈdʒɛtɪsən,ˈdʒɛtɪsən,ˈdʒɛtəsən/
a) To eject from a boat, submarine, aircraft, spaceship or hot-air balloon, so as to lighten the load.
The ballooners had to jettison all of their sand bags to make it over the final hill.
The jettisoning of fuel tanks.
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