jettisons; jettisoned; jettisoning
1
: to drop (something) from a moving ship, airplane, etc.
The captain gave orders to jettison the cargo.
They jettisoned the fuel and made an emergency landing.
2
: to get rid of (something)
We should jettison these old computers and get new ones.
: to reject (something, such as a plan or idea)
They jettisoned plans for a vacation.
Cite this Entry
“Jettison.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/jettison. Accessed 16 Apr. 2026.
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