Definition of jet
1 a
: an airplane powered by one or more jet engines
b
: jet engine
2
: a long narrow current of high-speed winds (such as a jet stream)
3 a (1)
: a usually forceful stream of fluid (such as water or gas) discharged from a narrow opening or a nozzle
(2)
: a narrow stream of material (such as plasma) emanating or appearing to emanate from a celestial object (such as a radio galaxy)
b
: a nozzle for a jet of fluid
4
: something issuing as if in a jet
- talk poured from her in a brilliant jet
- —Time
