# am ampère

## Ampère

[am-peer; French ahn-per]
noun
André Marie [ahn-drey muh-ree; French ahn-drey ma-ree] , 1775–1836, French physicist.

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World English Dictionary
 ampere (ˈæmpɛə) —n 1. the basic SI unit of electric current; the constant current that, when maintained in two parallel conductors of infinite length and negligible cross section placed 1 metre apart in free space, produces a force of 2 × 10--7 newton per metre between them. 1 ampere is equivalent to 1 coulomb per second 2. a former unit of electric current (international ampere); the current that, when passed through a solution of silver nitrate, deposits silver at the rate of 0.001118 gram per second. 1 international ampere equals 0.999835 ampere [C19: named after André Marie Ampère]

 Ampère (ˈæmpɛə, French ɑ̃pɛr) —n André Marie (ɑ̃dre mari). 1775--1836, French physicist and mathematician, who made major discoveries in the fields of magnetism and electricity

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Word Origin & History

ampere
1881, "the current that one volt can send through one ohm," from Fr. ampère, from André-Marie Ampère (1775-1836), Fr. physicist. Shortened form amp is attested from 1886.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

ampere am·pere (ām'pēr')
n.
Abbr. A

1. A unit of electric current in the meter-kilogram-second system, equal to the current that, flowing in two parallel wires one meter apart, produces a force of 2 × 10-7 newtons per meter.

2. A unit in the International System specified as one International coulomb per second and equal to 0.999835 ampere.

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