1. (of a mechanism, material, etc) moving smoothly and uninterruptedly
  2. electronics of or relating to a periodic signal that is not synchronized to a timing sourcefree-running interference produces moving patterns on a television screen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for free-running

Historical Examples of free-running

  • But as I fish for sailfish with a free-running reel, of course I am exasperated when a kingfish takes hold.

  • The best kind of oil to use is a free-running, light-colored petroleum machine oil.

    Paper-Cutting Machines

    Niel, Jr., Gray