1Consisting of or occurring in a number of separate stages.
- The polyphase tectonic and sedimentological development of East African continental rift basins is well-illustrated in the Kilombero Rift Valley in Tanzania.
- The Moine rocks widely record polyphase deformation and metamorphism up to amphibolite facies.
- New palaeomagnetic data from Lower Carboniferous granitoids of the orogenic root of the eastern Variscan belt show a polyphase palaeomagnetic record.
1.1(Of an electrical device or circuit) designed to supply or use simultaneously several alternating currents of the same voltage and frequency but with different phases.
- The Energy Policy Act of 1992 required minimum efficiency standards for general purpose, polyphase induction motors.
- The reduction in the die area dedicated to capacitance opens up the possibility of building more complex RF circuits, such as image-reject mixers and polyphase IF filters.
- In contrast to direct current (which was difficult to transmit more than ten miles), polyphase AC systems proved capable of transmitting power hundreds of miles.
- Example sentences
- But he had no scientific proof that, in situations of sleep deprivation, polyphasic sleep - the term for frequent napping - was more efficient than monophasic (getting sleep all in one chunk).
- It has been demonstrated that when a dark-adapted leaf is illuminated with high intensity actinic light, the fluorescence transient shows a polyphasic rise, including phases O, J, I, and P.
- Isolates underwent polyphasic analyses employing phenotypic (selective media and biochemical testing) and genotypic (polymerase chain reaction) assays to determine species identification.
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