a block having no sheave or other part rolling with the movement of a line.
a groove in a spar or other timber, through which a rope can slide.
The Torturous Treadmill And Other Exercise Name OriginsRead more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of dumb sheave
First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019