hypergols
/ˈhaɪpərˌɡɑlz/
noun
- Plural of hypergol; fuels that ignite spontaneously when they come into contact with an oxidizer, used especially in rocket engines.
- The storage and handling of hypergols require special safety precautions due to their reactivity.
- Engineers selected hypergols for the thruster system to ensure reliable performance in orbit.
- Many spacecraft use hypergols because they don't need an external ignition source.