Definition of "jettison" in English

noun

1. (uncountable, collective) Items that have been or are about to be ejected from a boat or balloon.

2. (countable) The action of jettisoning items.

verb

1. 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 fuel tanks were jettisoned.

2. (figurative) To let go or get rid of as being useless or defective.