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A rectangular array of squares or rectangles of equal size, such as in a crossword puzzle.
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A tiling of the plane with regular polygons; a honeycomb.
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A system for delivery of electricity, consisting of various substations, transformers and generators, connected by wire.
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(computing) A system or structure of distributed computers working mostly on a peer-to-peer basis, used mainly to solve single and complex scientific or technical problems or to process data at high speeds (as in clusters).
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(cartography) A method of marking off maps into areas.
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(motor racing) The pattern of starting positions of the drivers for a race.
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(electronics) The third (or higher) electrode of a vacuum tube (triode or higher).
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(electricity) A battery-plate somewhat like a grating, especially a zinc plate in a primary battery, or a lead plate in a secondary or storage battery.
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A grating of parallel bars; a gridiron.
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(theater, television) An openwork ceiling above the stage or studio, used for affixing lights etc.