Wiktionary
gas bladders
n. (gas bladder English)
Usage examples of "gas bladders".
It was smaller and more robustly built than a choluub, and rode the air by means of not one but three gas bladders.
All but one fell, exploding as their skins shrivelled and gas bladders ruptured.
Clusters of gas bladders like strange wattles bulked out its throbbing body and detracted from its manoeuvrability, but were necessary to carry the extra weight of its arms and armour.
These are what their name describes them to be: living gas bladders, as mindless as the cartilage creatures.