reef knot

noun Nautical.

a square knot used in reefing sails.

Origin of reef knot

First recorded in 1835–45
Also called flat knot. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reef knot

British Dictionary definitions for reef knot

reef knot


a knot consisting of two overhand knots turned opposite waysAlso called: square knot
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