jettison

[ jet-uh-suh n, -zuh n ]
/ ˈdʒɛt ə sən, -zən /

verb (used with object)

to cast (goods) overboard in order to lighten a vessel or aircraft or to improve its stability in an emergency.
to throw off (something) as an obstacle or burden; discard.
Cards. to discard (an unwanted card or cards).

noun

the act of casting goods from a vessel or aircraft to lighten or stabilize it.
jetsam.

Origin of jettison

1375–1425; late Middle English jetteson < Anglo-French; Old French getaison ≪ Latin jactātiōn- (stem of jactātiō) jactation

OTHER WORDS FROM jettison

jet·ti·son·a·ble, adjective

Words nearby jettison

jethro, jetliner, jetpack, jetport, jetsam, jettison, jetton, jetty, jetway, jeté, jeu

British Dictionary definitions for jettisonable

jettison
/ (ˈdʒɛtɪsən, -zən) /

verb -sons, -soning or -soned (tr)

to throw away; abandon to jettison old clothes
to throw overboard

noun

another word for jetsam (def. 1)

Word Origin for jettison

C15: from Old French getaison, ultimately from Latin jactātiō a tossing about; see jactation