Automotive Glossary
Automotive Glossary
Browse the glossary using this index
Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
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HEIHigh Energy Ignition. A distributor ignition system using electronic control of the coil secondary output. | |
Helical GearA gear with teeth cut at an angle. | |
Helical RotorA turbine or compressor in a turbocharger often has vanes that are helically shaped. | |
Helical SpringMetal spring used in vehicle suspension. Also known as a coil spring. | |
HemisphereA sphere is a perfectly round geometrical object in three-dimensional space, such as the shape of a round ball - a hemisphere is half a sphere | |
HeptaneA fuel used in research tests as a comparison when determining the octane rating of fuels. Octane value of zero. | |
HertzThe number of oscillations per unit of time. The SI unit for frequency is the Hertz which equals one oscillation per second. | |
HexShort for hexagonal. | |
HgMercury | |