Any other item that moves repeatedly back and forth between two positions, possibly transporting something else with it between those points (such as, in chemistry, a molecular shuttle).
To transport by shuttle or by means of a shuttle service.
Origin
From a merger of two words:
Middle English shutel, shotel, schetel, schettell, schyttyl, scutel, from Old English sċyttel, sċutel, equivalent to shut + -le
Middle English shutel, schetil, shotil, shetel, schootyll, shutyll, schytle, scytyl, from Old English sċytel, sċutel, from Proto-Germanic *skutilaz.
The name for a loom weaving instrument, recorded from 1338, is from a sense of being "shot" across the threads. The back-and-forth imagery inspired the extension to "passenger trains" in 1895, aircraft in 1942, and spacecraft in 1969, as well as older terms such as shuttlecock.
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