/ˈdʒɛtɪsən/ (JET-i-sun)

Definitions

1. verb

to discard or throw away something, especially something heavy or cumbersome, especially to save weight or space

“The pilot had to jettison the damaged fuel tank to make an emergency landing.”

2. noun

the act of discarding or throwing away something, especially something heavy or cumbersome

“The jettison of the excess cargo allowed the ship to sail more efficiently.”