Definitions for "Hiss"
To make with the mouth a prolonged sound like that of the letter s, by driving the breath between the tongue and the teeth; to make with the mouth a sound like that made by a goose or a snake when angered; esp., to make such a sound as an expression of hatred, passion, or disapproval.
To make a similar noise by any means; to pass with a sibilant sound; as, the arrow hissed as it flew.
To condemn or express contempt for by hissing.
Keywords:  falty, circuitry, inherant, khz, static
A form of static at 2kHz and up. Electronic equipment has inherant hiss; also due to falty circuitry.
Background signal interference in audio recording.
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