1. extremely enthusiastic or fanatical about something
2. infected with rabies
Usage: medical
3. extremely angry or violent

Examples

• She was a rabid fan of the baseball team.
• The rabid dog had to be quarantined immediately.
• His rabid support for the candidate never wavered.
• The veterinarian warned about rabid animals in the area.
• The debate turned into a rabid argument.
• Rabid protesters gathered outside the building.
• The rabid wolf was acting strangely and aggressively.