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ampere-hour

[ am-peer-ouuhr, -ou-er, am-peer- ]
/ ˈæm pɪərˈaʊər, -ˈaʊ ər, æmˈpɪər- /
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noun Electricity.

a unit of electric charge noting the amount of electricity transferred by a current of one ampere in one hour, equal to 3600 coulombs. Abbreviations: Ah, a.h., amp-hr, amp. hr.

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Origin of ampere-hour

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for ampere-hour

ampere-hour

noun

a practical unit of quantity of electricity; the quantity that flows in one hour through a conductor carrying a current of 1 ampere. 1 ampere-hour is equivalent to 3600 coulombsAbbreviation: a.h.
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
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