gearbox

or gear box

[ geer-boks ]

noun

1. a transmission, as in an automobile.
2. a shield or housing for gears.

gearbox

/ ˈɡɪəˌbɒks /

noun

1. the metal casing within which a train of gears is sealed
2. this metal casing and its contents, esp in a motor vehicle

Word History and Origins

Origin of gearbox¹

First recorded in 1885–90; gear + box ¹

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