What does the word auxiliary mean?

Usage examples for auxiliary

  1. When an engine has no auxiliary or starting, but an impulse valve that merely lets a puff of steam into the receiver, this impulse valve may leak, and if the escape or relief valve on the receiver is too much loaded, it may gag the H. P. piston by giving it high pressure steam on both sides, and this may throw the valve off its seat. – Modern Machine-Shop Practice, Volumes I and II by Joshua Rose
  2. Chaudieu, whose brother was a captain and one of Admiral Coligny's best soldiers, was a powerful auxiliary by whose arm Calvin shook France at the beginning of the twenty two years of religious warfare now on the point of breaking out. – Catherine de' Medici by Honore de Balzac
  3. She was registered eighteen hundred tons- about one- tenth the size of Mediterranean excursion- steamers today- and when conditions were favorable she could make ten knots an hour under steam- or, at least, she could do it with the help of her auxiliary sails. – Mark Twain, A Biography, 1835-1910, Complete The Personal And Literary Life Of Samuel Langhorne Clemens by Albert Bigelow Paine Last Updated: February 20, 2009