jet lag
PHYSIOLOGICAL CONDITION CAUSED BY TRAVEL ACROSS TIME ZONES
Jetlag; Jet-lag; Jet Lag; Jet lag syndrome; Circadian dysrhythmia; Jet-Lag; Jet leg; Desynchronosis; Travel fatigue; Jet lag disorder; Mental health effects of jet lag
Note: in BRIT, also use 'jetlag'
If you are suffering from jet lag, you feel tired and slightly confused after a long journey by aeroplane, especially after travelling between places that have a time difference of several hours.
N-UNCOUNT