high fidelity

American  

noun

Electronics.

1. sound reproduction over the full range of audible frequencies with very little distortion of the original signal.

---

high fidelity British  

noun

1. Often shortened to: hi-fi. 

   1. the reproduction of sound using electronic equipment that gives faithful reproduction with little or no distortion

   2. ( as modifier )

      a high-fidelity amplifier

---

Other Word Forms

• high-fidelity
  adjective

Etymology

Origin of high fidelity

First recorded in 1930–35