1. throw or drop (something) from an aircraft or ship: "six aircraft jettisoned their loads in the sea"
▪ abandon or discard (someone or something that is no longer wanted):"individuals are often forced to jettison certain attitudes and behaviors"Similardumpdropditchdischargeejectthrow outempty outpour outtip outunloadthrow overboardthrow over the sidediscarddispose ofthrow awaythrow outget rid oftoss outrejectscrapdispense withcast aside/offabandonrelinquishdrophave done withshedslough offshrug offthrow on the scrapheapinformal:chuck (away/out)flingdumpditchaxebinjunkget shut ofget shot oftrashOppositeloadkeepretain
noun
1. the action of jettisoning something:"the jettison lever"
Word Originlate Middle English (as a noun denoting the throwing of goods overboard to lighten a ship in distress): from Old French getaison, from Latin jactatio(n-), from jactare ‘to throw’ (see jet1). The verb dates from the mid 19th century.
