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definitions

gearbox

or gear box

[geer-boks]
SEE MORE SYNONYMS FOR gearbox ON THESAURUS.COM

noun

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

RELATED WORDS

delivery, communication, broadcast, message, dispatch, conduction, conductance

Nearby words

  1. gear lever,
  2. gear pump,
  3. gear ratio,
  4. gear train,
  5. gear up,
  6. gearing,
  7. gearset,
  8. gearshift,
  9. gearwheel,
  10. geb

Origin of gearbox

First recorded in 1885–90; gear + box1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for gearbox

gearbox

noun

the metal casing within which a train of gears is sealed
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