Defn: One who goes up in a balloon; an aëronaut.

BALLOON FISH
Bal*loon" fish`. (Zoöl.)

Defn: A fish of the genus Diodon or the genus Tetraodon, having the power of distending its body by taking air or water into its dilatable esophagus. See Globefish, and Bur fish.

BALLOONING
Bal*loon"ing, n.

1. The art or practice of managing balloons or voyaging in them.

2. (Stock Exchange)

Defn: The process of temporarily raising the value of a stock, as by fictitious sales. [U.S.]

BALLOONING SPIDER
Bal*loon"ing spi"der. (Zoöl.)

Defn: A spider which has the habit of rising into the air. Many kinds ( esp. species of Lycosa) do this while young by ejecting threads of silk until the force of the wind upon them carries the spider aloft.

BALLOONIST
Bal*loon"ist, n.