'Ballooning' definitions:

Definition of 'ballooning'

From: WordNet
noun
Flying in a balloon

Definition of 'Ballooning'

From: GCIDE
  • Ballooning \Bal*loon"ing\, n.
  • 1. The art or practice of managing balloons or voyaging in them; the sport of riding in balloons.
  • Syn: balloonry (archaic) [1913 Webster +PJC]
  • 2. (Stock Exchange) The process of temporarily raising the value of a stock, as by fictitious sales. [U.S.] [1913 Webster]