tachograph

American

[tak-uh-graf, -grahf] / ˈtæk əˌgræf, -ˌgrɑf /

noun

a recording tachometer.
tachogram.

tachograph British

/ -ˌɡræf, ˈtækəˌɡrɑːf /

noun

Often shortened to: tacho. a tachometer that produces a graphical record ( tachogram ) of its readings, esp a device for recording the speed of and distance covered by a heavy goods 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 tachograph

tacho- + -graph

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.

The jury heard tachograph records show the drivers had not taken mandatory breaks in the hours before the collision and both lorries were speeding as they approached Lansdown Lane.

From BBC • Nov. 23, 2016

"It's the same as the tachograph used in lorry cabs," said Michael.

From The Guardian • Mar. 27, 2013

"The tachograph indicates some unexplained variations in speed in the nine minutes before the accident," the judge said.

From BBC • Feb. 21, 2012

The tachograph indicates some unexplained variations in speed in the nine minutes before the accident.

From BBC • Feb. 21, 2012

She said his tachograph showed he was driving at 53mph along the 50mph stretch of road and there had been no reduction in speed approaching the collision.

From BBC • Mar. 15, 2011

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