high fidelity
noun
,
Electronics.
1.
sound reproduction over the full range of audible frequencies with very little distortion of the original signal.
Also called
hi-fi
.
Origin
1930-35
Related forms
high-fidelity,
adjective
British Dictionary definitions for
high fidelity
high fidelity
noun
1.
the reproduction of sound using electronic equipment that gives faithful reproduction with little or no distortion
(
as modifier
):
a high-fidelity amplifier
Often shortened to
hi-fi