Jettison definition

jĕtĭ-sən, -zən
jettisoned jettisoning jettisons
See word origin
Frequency:
To throw (goods) overboard.
verb
3
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To discard (something) as useless or a burden.
verb
3
1
The definition of jettison is to cast something aside, abandon it or throw it away.

When you cast aside your old interest in music and throw away your old instruments, this is an example of a situation where you jettison your love of music.

verb
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(informal) To discard (something) as unwanted or burdensome.

Jettisoned the whole marketing plan.

verb
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The act of discarding or casting overboard.
noun
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0
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Jetsam.
noun
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A throwing overboard of goods to lighten a ship, airplane, etc. in an emergency.
noun
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0
noun
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(uncountable) Collectively, items that have been or are about to be ejected from a boat or balloon.
noun
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(countable) The action of jettisoning items.
noun
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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.

verb
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To let go or get rid of as being useless or defective; discard.
verb
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To cast overboard or off.

A ship jettisoning wastes; a pilot jettisoning aircraft fuel.

verb
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1

Other Word Forms

Noun

Singular:
jettison
Plural:
jettisons

Origin of jettison

  • From Middle English jetteson a throwing overboard of goods to lighten ship from Anglo-Norman getteson from Vulgar Latin iectātiō iectātiōn- from iectātus past participle of *iectāre to throw jet2

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Anglo-Norman getteson, from Old French getaison (French: would be *jetaison like pendaison). Cognate to jetsam

    From Wiktionary

Jettison Sentence Examples

  • Speedferries will, in addition, have an absolute discretion to jettison, land, destroy or render innocuous any goods such as those described above.

  • For many centuries Egypt was famous as a wheat raiser; it was a cargo of wheat from Alexandria which St Paul helped to jettison on one of his shipwrecks, as was also, in all probability, that of the "ship of Alexandria whose sign was Castor and Pollux," named in the same narrative.

  • He himself must bear a part of it, for those goods formed part of the adventure for whose safety the jettison was made; and it is owing to the partial safety of the adventure that any contribution at all is received by him.

  • The Sea of Faith must not jettison this half of our tradition.

  • Rule Ii.-Damage By Jettison And Sacrifice For The Common Safety Damage done to a ship and cargo, or either of them, by or in consequence of a sacrifice made for the common safety, and by water which goes down a ship's hatches opened, or other opening made for the purpose of making a jettison for the common safety, shall be made good as G.A.

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