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(file format, compression)
A compression standard derived from LZ77; it is reportedly used in zip, gzip, PKZIP, and png, among others.

Unlike LZW, deflate compression does not use patented compression algorithms.

Used as a verb to mean to compress (not decompress!) a file which has been compressed using deflate compression. The opposite, inflate, means to decompress data which has been deflated.

Deflate is described in RFC 1951.
This article is provided by FOLDOC - Free Online Dictionary of Computing (
References in periodicals archive ?
"The aircraft has a safety system which operates automatically in circumstances of the aircraft breaking free of its mast, and is designed to rip open the hull and deflate the aircraft.
In Sections 5-6, we modify the basic setting by introducing an oblique projection that enables us to deflate approximate (possibly generalized) eigenspaces and to introduce a truly deflated GMRes method.
There's only one situation when you need to deflate the air springs, and that's when you're preparing your FMTV for air transport.
The emergency landing caused all four tires on the left hand side of the plane to deflate, while two on the right side also deflated, the airline said.
Officers in police cars were directed to intercept the car and the stinger - a device which has hollow spikes causing tyres to deflate very quickly - was used at the roundabout at Pensarn.
Under the phase 1 methodology, each industry's gross output price index is used to deflate industry value added.
Disavowing that idea will help deflate much of that resistance.
Most importantly, the CL2003 did not deflate under load, staying springy, soft and cushioning long after competing silicone products had given out, even at just 1.8" in width, according to the company.
Switching Investment Gears: Insurers, whose portfolios are heavily weighted toward bonds, may have to return to stocks as low interest rates deflate the value of some bond investments.
There's no way to deflate the power of racism without shining a light on it.
Several taxpayers have used dual indexes with IPIC (e.g., a cumulative index to deflate current-year FIFO cost to a base-year cost, to determine if an increment or decrement exists, and another to inflate any increment at base-year cost to current-year LIFO value).
One possibility is for mission controllers to partially deflate a ball when it reaches an interesting spot.