microgridn.
/ˈmʌɪkrə(ʊ)ɡrɪd/, U.S. /ˈmaɪkroʊˌɡrɪd/ 1. A small fine grid on the eyepiece of a microscope, or on the surface on which a specimen is mounted, used to aid the observation, counting, or measurement of cells or other extremely small objects.
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1939 Materials Engin. Apr. 129/2 In the present instance, the microgrids were ruled with the pointed diamond cutter of a microcharacter scratch hardness tester mounted on the stage of a table microscope.
1976 Jrnl. Infectious Dis. 134 397/1 The monocytes in 10 horizontal and 10 vertical microgrid fields (magnification, x900) were counted.
2017 H. Sugi et al. in F. M. Ross Liquid Cell Electron Microsc. 375 viii. [They] overcame this problem by the use of plastic microgrids made from a high molecular organic compound, cellulose acetobutylate.
2. A localized electrical power grid which can operate independently of a wide-area grid, but is typically connected to it.Microgrids are commonly used to supply emergency power and to integrate power obtained from renewable sources.
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1987 PR Newswire (Nexis) 17 Aug. Northern [Power] operates under the ‘MicroGrid’ trademark.]
1989 Electric Utilities Data Bk. for Asian & Pacific Region (Tata Energy Research Inst.) 148 Isolated and remote rural areas are supplied from micro-grids connected to diesel generators.
2001 F. Popcorn & A. Hanft Dict. Future 371 Visionaries see a future in which dozens, even hundreds, of disparate micropower units are linked together in so-called microgrids.
2021 West Austral. (Perth) (Nexis) 15 Apr. 51 The microgrid, which can run independently or connect to the main electricity network, would maintain supply to Kalbarri [during a network outage] using solar and wind.
This is a new entry (OED Third Edition, December 2021).
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n.1939