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Possible definitions for ias
Iasi
City (pop., 1994 est.: 340,000), NE Romania. Located west of the border with Moldova and northeast of Bucharest, it is on the Bahlui River. It was settled as early as the 7th cent., and in the 15th cent. it became a customs post on the trade routes along the Prut River valley. From 1565 to 1862 it was the capital of Moldavia. It was burned by Tatars in 1513, by Turks in 1538, and by Russians in 1686. It is the site of a university, the 16th-cent. Church of St. Nicholas, and a national theater.
base
In chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the color of acid-base indicators (e.g., litmus paper), reacts with acids to form salts, and promotes certain chemical reactions (e.g., base catalysis). Examples of bases are the hydroxides of the alkali metals and alkaline earth metals (sodium, calcium, etc.) and the water solutions of ammonia or its derivatives (amines). Such substances produce hydroxide ions (OH-) in water solutions. Broader definitions of bases cover situations in which water is not present. See also acid-base theory, alkali, nucleophile.
bass
Lowest musical voice or register. In vocal music, its range is approximately from the second E below middle C to middle C itself. A basso profundo emphasizes a lower register, a basso cantante a somewhat higher one. Outside of Russia, the solo bass voice has generally been relegated to certain standard operatic character roles. The lowest-pitched member of most instrumental families is usually called the bass (bass clarinet, double bass, etc.). In Western tonal music, the bass part is usually second in importance only to the melody, being the chief determiner of harmonic movement, a tendency that became particularly notable after the appearance of the basso continuo c.1600.
In zoology, any of numerous fish species, many valued for food or sport. Most are placed in three families (all in the order Perciformes): 400 species of sea bass and grouper; the family Moronidae, which contains about 12 species, incl. striped and European basses; and sunfishes, incl. the black and largemouth basses, prized by fishermen. Many other species are also known as bass, incl. the channel bass (a drum) and the calico bass (a crappie).
CASE
Use of computers in designing sophisticated tools to aid the software engineer and to automate the software development process as much as possible. It is particularly useful where major software products are designed by teams of engineers who may not share the same physical space. CASE tools can be used for simple operations such as routine coding from an appropriately detailed design in a specific programming language, or for more complex tasks such as incorporating an expert system to enforce design rules and eliminate software defects and redundancies before the coding phase.
gas
One of the three fundamental states of matter, ...
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