- any block that alters the direction of a rope; fairlead.
Origin of lead block
First recorded in 1855–60
Also called leading block.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for lead block
The four reactor cores in their lead cases went aboard last and were packed inside a pile of lead-block shielding.The Lani People
J. F. Bone