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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 1886See also Saybolt universal seconds, Engler degrees
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Word Origin

named after Sir B. Redwood (1846–1919), English chemist who proposed it
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012