hypergolic

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌhaɪpəˈɡɒlɪk/US:USA pronunciation: respellingUSA pronunciation: respelling(hī′pər gô′lik, -gol′ik)


WordReference Random House Unabridged Dictionary of American English © 2026
hy•per•gol•ic  (hī′pər gô′lik, -gol′ik),USA pronunciation adj. 
  1. Chemistry(esp. of rocket-fuel propellant constituents) igniting spontaneously upon contact with a complementary substance.
  • hyp(er)- + erg- + -ol2 + -ic 1945–50

Collins Concise English Dictionary © HarperCollins Publishers::
hypergolic / ˌhaɪpəˈɡɒlɪk/
  1. (of a rocket fuel) able to ignite spontaneously on contact with an oxidizer
Etymology: 20th Century: from German Hypergol (perhaps from hyp( er-) + erg1 + -ol2) + -ic
'hypergolic' also found in these entries (note: many are not synonyms or translations):
hypergol

Forum discussions with the word(s) "hypergolic" in the title:


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