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hydrate
Science; General science
A particular form of a solid compound which has water in the form of H 2 O molecules associated with it. For example, anhydrous copper sulfate is a white solid with the formula ...
gamma function
Science; General science
A particular mathematical function that can be used to express many definite integrals. There are, however, no significant applications where the gamma function by itself ...
townsend discharge
Science; General science
A particular part of the voltage-current characteristic curve for a gaseous discharge device named for J. S. Townsend, who studied it about 1900. It is that part for low current ...
triple point
Science; General science
A particular temperature and pressure at which three different phases of one substance can coexist in equilibrium. In common usage these three phases are normally solid, liquid, ...
electric protective devices
Science; General science
A particular type of equipment applied to electric power systems to detect abnormal and intolerable conditions and to initiate appropriate corrective actions. These devices ...
supersonic diffuser
Science; General science
A passive compressor (or shaped duct) in which gas enters at a velocity greater than the speed of sound, is decelerated in a contracting section, and reaches sonic speed at a ...
palaeoisopus
Science; General science
A peculiar arthropod, evidently related to the Pycnogonida and represented by a number of well-preserved fossils from the Devonian Hunsruck shales. It was formerly considered by ...
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