jet lag

== English == === Alternative forms === jetlag === Etymology === Possibly coined by Horace Sutton in 1966. === Pronunciation === IPA(key): /ˈd͡ʒɛt.læɡ/ (General Australian) IPA(key): /ˈd͡ʒet.læːɡ/ === Noun === jet lag (usually uncountable, plural jet lags) (aviation, medicine) A physical condition caused by crossing time zones during flight; often the result of disruption to the circadian rhythms of the body. Synonyms: jet syndrome, circadian dysrhythmia (medicine), desynchronosis (medicine), time-zone disease, time-zone fatigue ==== Derived terms ==== ==== Translations ==== === References === == Italian == === Alternative forms === jet-lag === Etymology === Borrowed from English jet lag. === Noun === jet lag m (invariable) jet lag == Portuguese == === Etymology === Unadapted borrowing from English jet lag. === Pronunciation === Rhymes: -ɛɡi, -ɛɡɨ === Noun === jet lag m (uncountable) jet lag (a physical condition caused by crossing time zones during flight) === Further reading === “jet lag”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026 == Spanish == === Etymology === Unadapted borrowing from English jet lag. === Pronunciation === Syllabification: jet lag === Noun === jet lag m (uncountable) jet lag ==== Usage notes ==== According to Royal Spanish Academy (RAE) prescriptions, unadapted foreign words should be written in italics in a text printed in roman type, and vice versa, and in quotation marks in a manuscript text or when italics are not available. In practice, this RAE prescription is not always followed. === Further reading === “jet lag”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025