plural of hypergol

(chemistry, aeronautics, of a reactant, fuel, or propellant) Igniting spontaneously upon contact with an oxidiser. / (chemistry, aeronautics, of a reaction) Involving such a hypergolic agent.

(chemistry, aeronautics) Any hypergolic propellant.

The condition of being hypergolic; the extent to which a propellant is hypergolic

In a hypergolic way.