The ability of an insulating material to withstand high voltage electric arc.

(aviation, petrochemistry, chemical engineering, of jet fuel) Composed of moderately-heavy hydrocarbons with boiling points in the kerosene range, without a significant proportion of lighter, gasol...

(science fiction) An inhabitant of Styx (a moon of Pluto).

(zoology) Any land crab of the family Gecarcinidae