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gearbox

American  
[geer-boks] / ˈgɪərˌbɒks /
Or gear box

noun

  1. a transmission, as in an automobile.

  2. a shield or housing for gears.

gearbox British  
/ 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gearbox

First recorded in 1885–90; gear + box 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Stranded out on track with a gearbox malfunction, he made it back to the pits where the team rushed to fix a problem they could not identify.

From BBC

Russell ended up 0.222 seconds adrift of the Italian after a race against time to solve a gearbox problem with his car that threatened to leave him 10th on the grid.

From BBC

Interfering with molecular systems like the T9SS gearbox could also prevent bacteria from moving and from releasing harmful proteins that contribute to disease.

From Science Daily

On top of that, the electronics are not working properly, so the auto-blip on the gearbox, which revs the engine automatically to the right level on down change, doesn't work.

From BBC

This is exacerbated by the fact Aston's first in-house gearbox - they have bought them in previously - is not communicating with the engine properly, and keeps behaving oddly, making life even more difficult for the drivers.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.