FRAC; Fracastoro; Fraccaro; Fraccaro, M. FRACDS; FRACGP; fracidin; FRACO; FRACOG; FRACP; FRACR; FRACS; fract-fract dos; Fractal; fractals; fraction; fraction collector; fraction of inspired oxygen; fractional; fractional dilation and curettage; fractional distillation; fractional excretion of sodium; fractional flow reserve; fractional injection; fractional oxyhemoglobin
In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal. carrier squelch is unlocked and will let any signal in. Selective calling locks out all signals except ones with the correct code. In non-critical uses, selective calling can also be used to hide the presence of interfering signals such as receiver-produced intermodulation.
A squall is a powerful, usually brief, burst of wind that usually brings rain or snow with it. When a snow squall blows across the mountain, skiers take a break in the ski lodge. A squall is a violent, windy storm, often involving driving rain or snow. You can also describe a storm-like commotion as a squall, or the sound a wailing child or baby makes. In this case, you're using onomatopoeia, or a word that sounds like what it describes. Squall was originally a nautical word, used primarily by sailors to talk about weather at sea.