valved

Halting before the great bronze-valved door, Conan caught Octavia by her shoulders and shook her in his intensity.

The author of this book has tried one of these “valved openings” recommended by Dr. Arnott, and has found it answer very well.

Capsule 3- (rarely 5-) valved; the valves bearing the numerous seeds on their middle for the whole length.

Before they reached the double-valved door at the other end, Conan had mounted the other steps and was in the hall behind them.

The big three-valved balloons of the bladdernut can sail either in the air, on the water, or over the frozen snow.