American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tach" in a sentence
"A tach is a useful item when you're trying to coax more miles out of fewer gallons, but they're not easy to come by for us diesel drivers."
"On the lower tier to the left of the tach is a needle that swings up and down between blue at the top and green at the bottom to let the driver know when the battery is expending power or getting a regenerative charge."
"Eye - tach - A spoof of V-tach which is short for Ventricular Tachycardia, a life-threatening cardiac arrhythmia."