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Redwood seconds

British  

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

"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

Etymology

Origin of Redwood seconds

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.