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McLeod gauge

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noun Physical Chemistry.
a device for determining very low gas pressures by manometrically measuring the pressure of a sample after its compression to a known fraction of its original volume.
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Origin of McLeod gauge

Named after Herbert McLeod (1841–1932), English chemist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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