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1. A knot used to attach a loop of rope to a fixed, larger-diameter rope in such a way that the loop slides freely along the larger rope when not under load but binds up when a load is applied.
2. A loop featuring such a knot.
[After Karl Prusik (1896-1961), Austrian mountaineer who introduced the knot.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Mountaineering) Also: prusik knot a sliding knot that locks under pressure and can be used to form a loop (prusik loop) in which a climber can place his foot in order to stand or ascend a rope
vb (intr) , -siks, -siking or -siked
(Mountaineering) to climb (up a standing rope) using prusik loops
[C20: named after Dr Prusik, Austrian climber who devised the knot]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Past participle: prusiked
Collins English Verb Tables © HarperCollins Publishers 2011