Clark cell
- noun
- /klɑrk sɛl/
- Archaic
- The Clark cell was once widely used to provide a reference voltage for laboratories.
Examples
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Calibration of instruments often relied on the stable output of a Clark cell.
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The Clark cell was once the standard for measuring electromotive force in scientific experiments.
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Although replaced by more modern standards, the Clark cell marked a significant advance in electrical measurement.
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The Clark cell was widely used in laboratories.
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Many scientists still reference the Clark cell in their experiments.
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To ensure accuracy, many physicists used a Clark cell as a reference during electrical calibrations.
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In the past, laboratories depended on the consistent voltage output of a Clark cell for precise measurements.
Synonyms
A battery used in labs as a standard to measure electric voltage
A stable electrical cell that gives a standard voltage for measuring instruments
A very stable battery used to check voltage on measuring devices
An electrical cell that uses cadmium metal for one electrode and gives a steady voltage for laboratory use
Surface Forms
Morphology
Clark + cell
The noun 'cell' clearly signals an electrical/battery unit, so learners can infer this is a kind of cell; however 'Clark' is a proper name with no lexical meaning, so the precise technical sense (a specific voltaic standard) and historical usage cannot be derived. A B1 learner would grasp that it denotes a type of cell named after someone but would not predict its exact function or role, making the expression only partially transparent.
Etymology
Clark cell is named after its inventor, Mr Clark, and cell here means a small battery used in laboratories. Because this small battery gave a very steady electric voltage, scientists used it like a measuring stick or 'standard' for other instruments, so the name now means a reliable reference voltage.