automatic transmission

noun

1. an automotive transmission requiring either very little or no manual shifting of gears. Compare manual transmission ( def ).

automatic transmission

noun

1. a transmission system in a motor vehicle, usually incorporating a fluid clutch, in which the gears change automatically

Word History and Origins

Origin of automatic transmission¹

First recorded in 1945–50

Example Sentences

Adult life naturally does not give us many opportunities of observing this pure form of direct and almost automatic transmission.

From Project Gutenberg

The two readings were electronically added and fed into the transducer for automatic transmission.

From Project Gutenberg