from The Century Dictionary and Cyclopedia

  • n. In mech. engin., a jack constructed on the same principle as a lazy-tongs, consisting of compound levers pivoted together.
  • n. Nautical, a length of rope rove through a thimble, seized on to the boom-topping lift, and made fast to the boom. When the sail is lowered the jacks prevent the folds of canvas from falling on the deck.


Sorry, no etymologies found.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.