di·meth·yl·hy·dra·zine noun \ˌdī-ˌme-thəl-ˈhī-drə-ˌzēn\
: either of two flammable corrosive isomeric liquids C2H8N2 which are methylated derivatives of hydrazine and of which one is used as a rocket fuel
First Known Use of DIMETHYLHYDRAZINE
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