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Redwood seconds

noun

  1. functioning as singular a scale of measurement of viscosity based on the time in seconds taken for fluid to flow through a standard orifice: accepted as standard in the UK in 1886 See also Saybolt universal seconds Engler degrees


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Word History and Origins

Origin of Redwood seconds1

named after Sir B. Redwood (1846–1919), English chemist who proposed it

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Redwood National Parkred worm