Gearhead Definition
 gîrhĕd 
  gearheads
  
    noun
  
 One who is knowledgeable or enthusiastic about the equipment and functioning of mechanical devices, especially automobiles.
 American Heritage 
(informal) An enthusiast for new technology, or for motoring.
Wiktionary 
Other Word Forms of Gearhead
Noun
Singular:
 gearheadPlural:
 gearheadsOrigin of Gearhead
-  gear +"Ž -head From Wiktionary 
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