Longman Dictionary of Contemporary English homepage

Sense: 1
Date: 1800-1900
Origin: ampere
Sense: 2
Date: 1900-2000
Origin: amplifier

amp

 noun
     
Related topics: Electricity, Recording, Electricity
amp [countable]
1 also am‧pereTPEHPE a unit for measuring electric current:
a 3 amp fuse
2 informalTCR an amplifier
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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