Collectively, items that have been or are about to be ejected from a boat or balloon
Deliberate throwing overboard of cargo or parts of the ship If done in time of peril, this is a general average sacrifice but is also recoverable as a direct claim on the policy
{i} act of casting goods from a ship to lighten its load; jetsam, goods thrown overboard from a ship
Releasing an airborne weapon or store by means of an emergency or secondary release system for safety purposes or to prepare for air combat Weapons are normally jettisoned in a safe condition
To selectively discard aircraft components such as external fuel tanks or canopies
A voluntary action to rid a ship of cargo to prevent further damage or peril Jettison is a covered peril in Ocean marine policies
The throwing overboard of goods from necessity, in order to lighten a vessel in danger of wreck
If you jettison something, for example an idea or a plan, you deliberately reject it or decide not to use it. The Government seems to have jettisoned the plan. = abandon
To cast overboard or off Informal To discard (something) as unwanted or burdensome
To jettison something that is not needed or wanted means to throw it away or get rid of it. The crew jettisoned excess fuel and made an emergency landing. = discard