a. ampère
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pɪər;
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To a. ampère
Collins
World English Dictionary
ampere (ˈæmpɛə) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —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 | |
00:10
A. ampère
is always a great word to know.
So is slumgullion. Does it mean:
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a stew of meat, vegetables, potatoes, etc. |
| 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 | |
Collins English Dictionary - Complete & Unabridged 10th Edition
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
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
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.
A unit in the International System specified as one International coulomb per second and equal to 0.999835 ampere.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
ampere  (ām'pîr') Pronunciation Key
The SI unit used to measure electric current. Electric current through any given cross-section (such as a cross-section of a wire) may be measured as the amount of electrical charge moving through that cross-section in one second. One ampere is equal to a flow of one coulomb per second, or a flow of 6.28 × 1018 electrons per second. |
| Ampère (ām'pîr', äm-pěr') Pronunciation Key
French mathematician and physicist who is best known for his analysis of the relationship between magnetic force and electric current. He formulated Ampère's law, which describes the strength of the magnetic field produced by the flow of energy through a conductor. The ampere unit of electric current is named for him. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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