[ am-mee-ter ]
/ ˈæmˌmi tər /

noun Electricity.

an instrument for measuring current in amperes.

Origin of ammeter

First recorded in 1880–85; am(pere) + -meter Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ammeter

British Dictionary definitions for ammeter


/ (ˈæmˌmiːtə) /


an instrument for measuring an electric current in amperes

Word Origin for ammeter

C19: am (pere) + -meter
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

Science definitions for ammeter


[ ămmē′tər ]

An instrument that measures the strength of an electric current, indicating it in amperes. Ammeters typically include a galvanometer; digital ammeters typically include A/D converters as well. Compare ohmmeter voltmeter.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.