D defs.my
Entry 1 sense Webster, 1913

Top-block

· Top·-block · IPA
01 n. A large ironbound block strapped with a hook, and, when used, hung to an eyebolt in the cap, -- used in swaying and lowering the topmast.
  1. 1.
    A large ironbound block strapped with a hook, and, when used, hung to an eyebolt in the cap, -- used in swaying and lowering the topmast.(Naut.)