jet1
n.
- a rapid stream of liquid or gas forced out of a small opening.
- a jet engine.
▸an aircraft powered by jet engines.
v.
(jets, jetting, jetted)
- spurt out in a jet.
- travel by jet aircraft.
Etymology
C16: from Fr. jeter ‘to throw’, based on L. jactare, frequentative of jacere ‘to throw’.
jet2
n.
- a hard black semi-precious variety of lignite.
- a glossy black colour.
Etymology
ME: from OFr. jaiet, from L. Gagates, from Gk gagatēs ‘from Gagai’, a town in Asia Minor.