rabid

adj. infected with rabies; extreme, fanatical

This article is about the 1977 film. For the record label, see Rabid Records. For other uses, see Rabies.Rabid is a 1977 horror film written and directed by David Cronenberg. Marilyn Chambers stars, with Frank Moore, Howard Ryshpan, Joe Silver and Robert A. Silverman, who would go on to become a regular Cronenberg actor, appearing in The Brood, Scanners, Naked Lunch and eXistenZ.
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Adjective
1. marked by excessive enthusiasm for and intense devotion to a cause or idea; "rabid isolationist"
(synonym) fanatic, fanatical, overzealous
(similar) passionate

(n.)
Of or pertaining to rabies, or hydrophobia; as, rabid virus.
  

(n.)
Furious; raging; extremely violent.
  

(n.)
Extreme, unreasonable, or fanatical in opinion; excessively zealous; as, a rabid socialist.
  

(n.)
Affected with the distemper called rabies; mad; as, a rabid dog or fox.
  

Having contracted the rabies virus. (Whereas a sports fan can be rabid without being physically sick, in medicine a rabid individual has rabies.)