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Related to hypergolic: hydrazine


1. Of or relating to a rocket propellant consisting of fuel and an oxidizer that ignite spontaneously on contact.
2. Using such a fuel.

[From German Hypergol, a hypergolic fluid propellant : from hyper-, extreme (from Greek huper-; see hyper-) + Greek ergon, work; see erg1.]

hy′per·gol′ (hī′pər-gôl′, -gōl′, -gŏl′) n.
hy′per·gol′i·cal·ly adv.


(Chemistry) (of a rocket fuel) able to ignite spontaneously on contact with an oxidizer
[C20: from German Hypergol (perhaps from hyp(er-) + erg1 + -ol2) + -ic]


(ˌhaɪ pərˈgɔ lɪk, -ˈgɒl ɪk)

(esp. of rocket fuels) igniting spontaneously upon contact with a complementary substance.
[1945–50; < German Hypergol a hypergolic rocket fuel (< Greek hy(per)- hyper- + érg(on) work + German -ol -ol2) + -ic]
References in periodicals archive ?
Each engine, the chambers of which are 3-D printed, burns hypergolic propellants monomethylhydrazine and nitrogen tetroxide.
Packed with kerosene, liquid oxygen and hypergolic propellants, the Angara-A5 weighs 773 metric tonnes, making it the largest Russian launcher ever fired in the country since the late 1980's.
It is suggested that the hypergolic fuel remaining in the tanks fuel must have leaked prior to its combustion which likely provided the medium in which the comet-like structure was produced.
Considering the complications of insensitive munitions requirements and the Navy's desire to avoid hypergolic liquid fuels, the design challenge becomes even greater.
It is powered by a AR2-3 rocket engine using the hypergolic (self igniting) combination of nitrogen tetroxide and hydrazine, whilst the maneuvrering engines are fuelled by hydrogen peroxide.
The message listed only the weight of the cargo, but during mission planning, I discovered our load was 10 AQM-37 target drones, which had "rocket motors with hypergolic liquids.
This part of the facility was constructed to withstand exploding hypergolic fuels such as monomethyl hydrazine and nitrogen tetroxide.
American "Aerobee" fuel (75/25 aniline and furfuril alcohol) as starting, hypergolic compound;
Many of these words are compounds of classical stems and affixes, such as bacteriology, barometer, hypergolic, methamphetamine, microspectrophotometer and photosynthesis.
These work instructions will be executed from the Launch Control Center and the Hypergolic Maintenance Facility of the Kennedy Space Center.
A large hypergolic engine named SuperDraco would propel the Dragon spacecraft away from its rocket to save the crew from a disastrous event during launch or ascent.
For almost 40 years, approximately 1,800 pounds of pentaborane, a hypergolic rocket fuel, was stored at Redstone Arsenal undergoing evaluations for military applications.