What does the word dirigible mean?

Usage examples for dirigible

  1. His ears were black, long, and highly dirigible. – The Galaxy Primes by Edward Elmer Smith
  2. In the anti- submarine campaign the several forms of aircraft- airplane, seaplane, dirigible, and kite balloon- developed great offensive power. – The Victory At Sea by William Sowden Sims Burton J. Hendrick
  3. Are we faster than the dirigible? – The Boy Aviators' Treasure Quest by Captain Wilbur Lawton (pseudonym for John Henry Goldfrap)