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1. a wet or dry cloth or gauze pad with or without medication, applied firmly to some part of the body to relieve discomfort, reduce fever, drain a wound, etc.
2. a machine for packing material, esp cotton, under pressure
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a bandage used for healing purposes.

A dry compress (usually cotton-gauze) is applied to a painful or injured part of the body (wound, burn) to protect it from chilling and other external irritants and to absorb any discharges. Wet compresses may be either cold (lotion) or hot (poultice). A heating compress (a damp material covered with waterproof paper or oilcloth and a layer of cotton) is used with inflammatory processes as a revulsive and resorptive. A medicinal compress is one in which medicinal substances (ointments, pastes, novocain) are added to the water.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


To feed data through any compression algorithm.


The Unix program "compress", now largely supplanted by gzip.

Unix compress was written in C by Joseph M. Orost, James A. Woods et al., and was widely circulated via Usenet. It uses the Lempel-Ziv Welch algorithm and normally produces files with the suffix ".Z".

Compress uses variable length codes. Initially, nine-bit codes are output until they are all used. When this occurs, ten-bit codes are used and so on, until an implementation-dependent maximum is reached.

After every 10 kilobytes of input the compression ratio is checked. If it is decreasing then the entire string table is discarded and information is collected from scratch.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


(1) To compact data to save space. See data compression and archive program.

(2) A Unix utility used to compress files. This is the perfect example of poor technical naming. When a common name is used to name a function, it becomes tedious to document the process. For example, "use gzip to compress the file instead of compress because..." See archive formats, tar, gzip and data compression.
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References in periodicals archive ?
The linear regression model was applied on the qualitative data of grain sized obtained from different granite samples for evaluating the effect of grain size on uniaxial compressive and tensile strength.
As seen in Table 2, there were six specimens for each specimen code, in which three specimens were subjected to tensile splitting test and three specimens were subjected to compressive test.
In this section, we briefly describe the model for the compressive stress-strain curve [9].
Although a compressive modulus can be derived from the load-deflection plot (Fig.
where [f.sub.c] is the compressive strength of masonry wall, t is the masonry wall thickness and [gamma] = V/(bt[f.sub.c]).
The compressive strength of outdoor cured GPC specimens was compared with that of oven cured specimens.
After the cooling period to laboratory temperature, the compressive and flexural strength values of samples were determined according to TS EN 1015-11 (2000).
The concrete mixtures of one hundred sixty-two concrete specimens were poured into a polyvinyl chloride mold with a dimension of 150 mm x 150 mm x 150 mm to measure compressive strength and the elasticity modulus of recycled aggregate concrete.
Two types of specimens were used in this study for the compressive strength test and chloride ion infiltration test.
Figure 1 shows the compressive strength values of different magnesium oxide contents in the case of using high-activity magnesia; Figure 2 is the compressive strength of different water-cement ratios in the carbon block.
The properties examined included mechanical properties (compressive and tensile strength), transport properties (chloride permeability and chloride penetration), and micro structural properties (pore structure and phase composition).