ampere

noun

am·​pere ˈam-ˌpir 

also

-ˌper 

plural amperes

1

: the practical meter-kilogram-second unit of electric current that is equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied across a resistance of one ohm

2

: the base unit of electric current in the International System of Units that is defined by setting the fixed numerical value of the elementary charge to 1.602176634 x 10^-19 ampere seconds

Examples of ampere in a Sentence

a current of 15 amperes

Word History

Etymology

André-Marie Ampère

First Known Use

1881, in the meaning defined at sense 1

Phrases Containing ampere

• ampere-hour
• ampere-turn
• volt-ampere

Rhymes for ampere

• adhere
• ameer
• amir
• appear
• arrear
• astir
• austere
• career
• cashier
• cohere
• compere
• emir

Kids Definition

ampere

noun

am·​pere ˈam-ˌpi(ə)r 

: a unit for measuring the rate of flow of an electric current

Medical Definition

ampere

noun

am·​pere

ˈam-ˌpi(ə)r also -ˌpe(ə)r

1

: the practical mks unit of electric current that is equivalent to a flow of one coulomb per second or to the steady current produced by one volt applied across a resistance of one ohm

2

: the base unit of electric current in the International System of Units that is equal to a constant current which when maintained in two straight parallel conductors of infinite length and negligible circular sections one meter apart in a vacuum produces between the conductors a force equal to 2 × 10⁻⁷ newton per meter of length

Biographical Definition

Ampère

biographical name

Am·​père äⁿ-ˈper 

André-Marie 1775–1836 French physicist