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Naismith's rule

/ ˈԱɪɪθ /

noun

  1. mountaineering a rule of thumb for calculating the time needed for a climbing expedition, allowing 1 hour for every 3 miles of distance plus 1 hour for every 2000 feet of height
“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


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Word History and Origins

Origin of Naismith's rule1

C19: named after W. W. Naismith (1856–1935), Scottish climber, who formulated it
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Example Sentences

Examples have not been reviewed.

Y.M.C.A. missionaries introduced the game in Tianjin in 1895 and, using a Chinese translation of Naismith’s rule book, spread it widely.

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Naismithnaissance