ballooning
Webster's Unabridged Dictionary:
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Bal·loon·ing
n.
1. The art or practice of managing balloons or voyaging in them; the sport of riding in balloons.
balloonry (archaic)
[1913 Webster +PJC]
2. (Stock Exchange) The process of temporarily raising the value of a stock, as by fictitious sales. [U.S.]
