A deadeye is an item used in the standing and running rigging of traditional sailing ships. It is a smallish round thick wooden (usually lignum vitae) disc with one or more holes through it, perpendicular to the plane of the disc. Single and triple-hole deadeyes are most commonly seen. The three-holed blocks were called deadeyes because the positi... Found on http://en.wikipedia.org/wiki/Deadeye
A wooden block with holes (but no pulleys) which is spliced to a shroud. It is used to adjust the tension in the standing rigging of large sailing vessels, by lacing through the holes with a lanyard to the deck. Performs the same job as a turnbuckle. Found on http://en.wikipedia.org/wiki/Glossary_of_nautical_terms
A wooden block with holes (but no pulleys) which is spliced to a shroud. It is used to adjust the tension in the standing rigging of large sailing vessels, by lacing through the holes with a lanyard to the deck. Performs the same job as a turnbuckle. Found on http://en.wikipedia.org/wiki/Glossary_of_nautical_terms
In ships, a deadeye or dead-eye is a hardwood disk with holes in it through which a lanyard is passed. Deadeyes are used on ships to tighten shrouds and stays. Found on http://www.probertencyclopaedia.com/browse/RD.HTM
either of a pair of disks of hardwood having holes through which a lanyard is rove: used to tighten shrouds and stays. · an expert marksman. Found on https://www.infoplease.com/dictionary/deadeye