D defs.my
Entry 3 senses Webster, 1913

Deadwood

/dĕd'-wo͝odˌ/ · Dead·wood · IPA /ˈdɛd.wʊd/
01 n. A mass of timbers built into the bow and stern of a vessel to give solidity.
  1. 1.
    A mass of timbers built into the bow and stern of a vessel to give solidity.(Naut.)
  2. 2.
    Dead trees or branches; useless material.
  3. 3.
    People who are unproductive; -- used especially in reference to employees.[fig.]