hypergolic

adjective hy·per·gol·ic \ˌhī-pər-ˈgä-lik\

Definition of HYPERGOLIC

: igniting upon contact of components without external aid (as a spark)

: of, relating to, or using hypergolic fuel

— hy·per·gol·i·cal·ly \-li-k(ə-)lē\ adverb

German Hypergol a hypergolic fuel, probably from hyper- + erg- + -ol (hydrocarbon)

First Known Use: 1947

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