We found 1 definitions of gear box from 1 different sources.
Noun |
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gear box - the shell (metal casing) in which a train of gears is sealed | ||
gearbox, gear case | ||
casing, shell, case the enclosing frame around a door or window opening; "the casings had rotted away and had to be replaced" | ||
transmission system, transmission the act of sending a message; causing a message to be transmitted |