Pronunciation: (ded'man", -mun), [key]
—n., pl. -menPronunciation: (-men", -mun), [key]
1. Building Trades.a log, concrete block, etc., buried in the ground as an anchor.
2. a crutchlike prop temporarily supporting a pole or mast being erected.
a. an object fixed on shore to hold a mooring line temporarily.
b. a rope for hauling the boom of a derrick inboard after discharge of a load of cargo.
Also,dead-man's. Mach., Auto.of or pertaining to a control or switch on a powered machine or vehicle that disengages a blade or clutch, applies the brake, shuts off the engine, etc., when the driver or operator ceases to press a pedal, squeeze a throttle, etc.: deadman throttle; dead-man's control.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.